BEWARE: Aggressive Upsell on a Routine Maintenance Visit UPDATE: UPDATE: I am writing to update my experience with Stable Temp. I initially called them to fix an issue with my property's HVAC unit. Their technician diagnosed the problem as a failing control board and gas valve, which would have been a costly repair. However, the problem continued after their visit. I was forced to call another company to get a proper diagnosis. The second company was professional and quickly discovered that the expensive parts were fine. The real issue was simply an incorrect setting on the unit, which he believed was improperly adjusted during Stable Temp's visit. He corrected the setting, and the system has worked perfectly since. He also confirmed that the air filter was destroyed by the previous technician. I'm frustrated by the complete misdiagnosis from Stable Temp, which caused unnecessary stress and could have led to hundreds of dollars in needless repairs. -- The initial scheduling with Stable Temp was easy, and the technician, Kevin, was professional. I hired them for a routine $169 maintenance check on a relatively new furnace (installed 2021/2022). However, the visit concluded with a major red flag: a recommendation to replace both the gas valve and the control board for a total of $634.98. This was highly suspicious for two reasons. First, it is extremely rare for both of these major components to fail simultaneously on such a new system. A proper diagnosis should isolate the single point of failure. Second, and more importantly, the initial estimate made no mention of the manufacturer's parts warranty, which is almost certainly still active on a system this new. The recommendation to replace everything at full cost, without proactively checking the warranty, felt like a clear attempt to use a low-cost maintenance call to generate a large, unnecessary repair bill. I declined the repair and informed the company I would be getting a second opinion. *** UPDATE: Manager's Response Confirms Suspicions *** After I expressed my concerns, the manager (Vlad) responded to me in writing. His email confirmed my decision was correct. He admitted that their diagnostic process is not always definitive, stating it is sometimes necessary to "replace one [part] to see how it affects the rest of the unit's performance." This is essentially a "guess and check" approach to repairs, where the customer pays for the parts being tested. He also confirmed that the warranty was only checked after I questioned the initial estimate, which should have been the first step. This experience has shown that their process can lead to recommendations for expensive, non-definitive repairs that may ignore a homeowner's warranty coverage. I paid the $169 diagnostic fee to close out this engagement and am proceeding with a different company. I strongly advise other homeowners to be cautious. read more

This has been a nightmare. Three years ago, this company installed an HVAC package unit on my home, and now, in the middle of winter, I am left without a proper working heating system. Recent maintenance immediately discovered the system they installed--a 2-ton unit--was connected to 10" ducts, which is NOT OK. The unit they sold me is larger than the one I previously had. It's basic knowledge that 2 ton unit requires larger ducts to operate properly. Anyone can google "2 ton package unit ducting" and see 10" ducting is ~400CFM and 2 tons needs ~800CFM. Any response from this company you will see here is unlikely to acknowledge this failure - they sold me a unit that's grossly oversized for my home. This improper installation has caused significant issues. The system is inefficient, working harder than it should and driving up energy costs. It has been damaging itself by burning out due to restricted airflow. When I was using it, the system short-cycled frequently, leading to excess moisture buildup inside my home. The burning components were also releasing harmful particles into my living space, compromising air quality. I raised concerns several times to Stable Temp after installation because of a strange smell, but they failed to identify their fundamental mistake of connecting an oversized unit to ducts that were far too small. At one point running the system for four hours with the blower off to try and burn off the smell. It of course didn't work. I've since had three different reputable companies inspect the system, and all have confirmed that this is gross negligence. I've had a static pressure test to further confirm. All agree that the unit is completely incompatible with the existing ductwork, and modification is not a feasible option. My only choice is full removal and replacement of the unit, which has left me with a significant financial and logistical burden. Unfortunately, this wasn't the only poor decision Stable Temp made. They installed weather stripping on the outside of the unit, tried to force in an incorrectly sized filter by bending the frame, and left improper wiring. These actions reflect a complete lack of knowledge or care in their work. Since then, I've found a similar complaint on the Better Business Bureau regarding their installation of improperly sized HVAC systems, suggesting this is not an isolated incident. I requested a refund for the cost of the unit and installation, but the company has refused to take responsibility. Not only do I now have no heat during colder weather, but I am also left dealing with the stress and expense of correcting their mistakes. I trusted this company to provide a reliable HVAC solution, but instead, I've been left with no resolution and mounting costs. I strongly advise anyone considering this company to look elsewhere to avoid ending up in the same situation. read more

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I'm a real estate agent and property owner/ landlord. I'm busy, often have urgent HVAC needs and price-sensitive clients. I really appreciate how responsive Ivan is when I need to reach him. He's also very honest, which is hard to find. He's good with my clients as well, which is paramount to me because that affects my business and my reputation. Quality of work is great and pricing is very competitive, especially when they show up on time and do what they say they're going to do. Over the years, I've been through countless HVAC contractors and Stable Temp is the best I've found. read more

I had a refrigerant leak in my AC, and this company was a huge disappointment. The first time they came, they said they couldn't find the leak but charged me $441 for adding 2lbs of refrigerant and a stop-leak sealant, which they strongly recommended. During this visit, the technician broke my vent and told me he couldn't fix it because it was a handyman job and he didn't intend to break it. so I had to hire a handyman myself, which cost me an additional $160. Within 45 days, the AC stopped working again. When they came back, they spent nearly two hours inspecting, only to say they couldn't find the leak again. They wanted to charge me another $300 for further investigation, with no guarantee of finding the problem. I declined, and they still charged me $79 just for showing up. To make matters worse, I found another technician from a different company, and that guy found the leak in just 15 minutes! This company wasted my time and money--avoid them if you want real results. read more

Nice and quick service, I called the number a and technician was scheduled to visit the next day. Serge was very knowledgeable, and quickly figured out what the issue was (burnt pump) and how it could be prevented in near future (by vacuuming the drainage pipe). He also replaced the air filter. Very happy of this professional service. read more

The quality and customer service that Stable Temp provided was superb! They replaced my full air duct system under the house! Excellent service! read more

They sold me a furnace and installed it. It had a gas leak. They sent out a worker to fix it who replaced some hoses and did not fix the leak. I paid $500 for a plumber to fix the leak and they did not reimburse me. I had no hot water for a week. Bummer situation. Stressful. read more

Stable Temp is a skilled, quality and very honest HVAC company. I needed someone out the next day due to a complicated issue I was having during the sale of a property. Vlad, the owner came out the very next morning... I was the first appointment and he spent a long time diagnosing a problem I was having on a very old furnace. He even spent time afterwards, trying to locate a part for me. He went the extra mile knowing I didn't want to replace the unit. I cannot recommend them enough! Even the person who took the call the night before was kind and thoughtful. Thank you Stable Temp! read more

4.850 stars. Excellent company. We had a Daikin Minisplit that was throwing an error and initially hired another company to come out who correctly diagnosed the issue. After that company suggested we try to go through warranty, we called the "preferred vendor" Bill Howe, who suggested repair at $1250. Ivan from Stable Temp was excellent. He was willing to, with photos and through messaging, unlike multiple other companies, who insisted on having to come out to the property to assess, to give us a bid to repair the problem (the printed circuit board had gone bad), and also gave us a bid to change out the system for a new system. He also did the research for us to find out if we were actually covered under warranty, which we were not. At the time, Daikin was only offering 5 year warranties on parts, so we were outside of that window. We ended up just repairing out current system by replacing the PCB for about $800 and everything works great now. A+ outfit. Will call them again for any issues. read more

First off, I would like to thank Alex for coming out to my house to fix my Broken AC. I would also like to thank the secretary that took my phone call, Thank You for reassuring me that, everything would be OK. Stable Temp Heating & Air Conditioning is a top notch company and I highly Recommend them. read more

Dmitriy and his team gave us an estimate to install mini split units. After shopping with 4 different companies I elected to go with Stable based on their honesty, warranty, and price. They gave me options for different units and I elected to go with A/C Pro made by Gree. The install of the 4 units went smoothly and they referred a good handyman to do some patch and repair work on window coolers and wall furnaces we wanted removed. The installers were hard working and finished it up in 1 day. Dmitriy also gave me the good advice to mount the pump on the exterior to the siding so our pup didn't pee on it. The only hiccup we had was with the unit not connecting to the mobile app (that I paid a bit extra to add). It took a few techs to come out on different occasions but Ivan finally resolved it. I appreciated the follow up and the units work great so far. The test will be in a couple years if they still do well! I have also referred them to clients for Hvac issues and they even stayed late on a Friday night to resolve an a/c issue. Overall their communication is great, hardworking crew, and reasonable prices! read more

Stable Temp HVAC - Heating & Air Conditioning/HVAC Near Me - San Diego, California

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Our furnace decided to called it quits and after reading reviews decided to call for a bid to replace - best decision ever! This HVAC company is amazing! They answered after hours, showed up on time and prices were very good. The installers were professional and took great care of our home and flooring. They were in and out fast ! Very professional service and highly recommended read more

Stable Temp HVAC - New Furnace - Heating & Air Conditioning/HVAC Near Me - San Diego, California

Earlier this week (November 17), our furnace went out. I called several HVAC companies (including my beloved Mauzy), but the soonest I could get anyone to come out and check the furnace was December 4 (one company said December 14, unless I was willing to pay 2x overtime). I checked Yelp and found Stable. Gave them a call and they said, "Sure -- we'll send someone over today." Say what?!? I told them to come on over. Vlad showed up -- with a mask, thank you -- checked out the system for about half and hour, and decided I needed a new control board. He called the office and they had one in stock. It was already toward the end of the workday, so we made an appointment for the next morning. Vlad arrived the next morning right on time, installed the new control board, and the furnace worked like a charm. If you need HVAC help right NOW, then be sure to give Stable a call. I'm glad I did. read more

This company operates in bad faith, advertising comprehensive services for low prices and once an appointment occurs pulling a bait and switch, demanding more money for services that were supposed to be included in packages per their website. I booked an AC Tune-Up for $89 which was supposed to include a condenser coil cleaning per their website description. When the technician arrived he informed me that the condenser coil cleaning was an additional charge and would cost over $300. I contacted their office to ask for remediation and they confirmed that they're operating in bad faith and claimed that when an appointment is booked for an AC Tune-Up there's a different description provided which indicates the service is merely to "check air conditioner parts and functions" which is not only untrue but even if it were true, would be admission that they're operating in bad faith. I will be taking this matter to court if I'm not offered a full reimbursement. I'm surprised to see so many positive reviews if this is the manner in which they operate... read more

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I'm revising my review to 4 stars because we were able to resolve the warranty items refund. Dinara is a saving grace at this company because she is a good person to communicate with, very friendly and it was easy to schedule appointments. The technicians took a little longer to diagnose and fix my Carrier brand Minisplit but in the end, they did not give up and it did get fixed. I am happy with the services, just wished that the warranty refund would have been sooner, but it did get settled. read more

Great service from start to finish. I'd highly recommend these folks to friends and family alike , as well as others. We had a problem and the company responded next day when I called them at 7pm. I'd rate the technician who took care of us as: 5+. persistent to contact me to take care of our problem. Friendly, knowledgeable professional who went above and beyond to take care of the issue. Once again I'd rate this company as outstanding from start to finish! read more

It was VERY hot here in San Diego around August to September - We live in a 1 bed/1 bath condo and had NO air conditioning. It was miserable! So we decided to look into getting AC. We had a problem with the layout of our condo so we knew we had to find a problem solving company. With soo many AC companies to choose from here in SD we were a little overwhelmed. We knew we wanted to get a few quotes from different places so we asked about 8 companies to give us a quote. For the most part most were good but some were not and some were VERY overpriced. The last company we asked was Stable Temp HVAC. It took the other quotes for us to realize how professional and informative these experts are! They stayed longer and gave us way more information than the others. Dmitriy answered all our questions and gave the right recommendations. When it came to pricing he was straightforward and honest. From gathering all the other quotes they were about the middle price and I am glad we found them. We also have an HOA and they provided all the documents required very quickly so our plan was approved right away. On the day of installation they were on time and ready! They were very cautious with everything in the home and always professional. We now have AC in our condo with our new nest system and we are both very happy customers. We will be ready for the heat here in San Diego :) If you're looking for HONEST, PROFESSIONAL, AFFORDABLE air conditioning service give Stable Temp HVAC a call - get the consultation and see for yourself how well they treat their customers. Thank you again Dmitriy! read more

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I hired Stable temp to fix a broken mini split at my home and now it's working perfectly. Tech came out the day after my call and the cost was much lower quotes from other companies. Highly recommended! read more

Called Sunday night, got an answer, they came out next day. Extremely professional and responsive. Edit, They claimed everything was fixed and left. I specifically asked is it working 100% no issues? They claimed it was and left. Next day AC is blowing hot again. Call them back up and they send a tech out after 2 days so now were at 4-5 days of hot air. The tech Vladimir comes out (same guy that fixed it all the first time) and quickly finds a leak, states it will be an additional 360 (added onto the 640 we already paid just for repair). He even argues so loud with me that my kids and wife are freaking out in the other room... Us not being happy with having to pay a new bill after they left stating there were no leaks, I call his manager Demetri. The manager states he understands why we are upset and he will call his technician and figure out what the issue is. After supposedly speaking to his tech, he calls us back and states we still have to pay for the recharge (even though they should of checked for a leak in the first place, causing us to have to pay for 2 full recharges now) and the fee to check if there is a leak, but he said he would give us like 40 dollars off.... manager even said "or we could just leave" giving us the ultimatum that we have to pay the 640 to them and now turn around and pay another company similar and hope they fix it BIG WARNING, DO NOT USE THIS COMPANY lol I guess its my fault not using more professional people in the first place and trying to go with a cheaper company. At the end of the day, the company got a thousand bucks out of us for just adding a wire and recharging the system..... LOL I just hope they aren't the shady type that let it leak a little so they can come back out and get more money out of people, because why wouldn't they check a precharged system that's blowing out for a leak?... Common sense... read more

If you are looking for a professional, honest and a business with true integrity then you've found the right place. I've called them multiple times through the years for annual check ups on my HVAC unit. They are true to their word, on time and never try to oversell you. Call them. read more

Stable Temp HVAC is the best! I have known Vlad for over a year now. He installed two large AC units in my home last year. What makes Vlad's company so great is the following: 1. Great customer service. 1A. Vlad knows his stuff! He's smart and current with all of the new tools and products (e.g. Nest) 2. Always prompt. He answers his phone, responds to text and shows up on time - EVERY single time. 3. Prices are fair and reasonable. Far better than local competitors in north county. 4. Great reputation. One of my investor partners recommended him because of his high-quality work across multiple projects. 5. Even after one year, we had some issues, Vlad showed up fast to help us ensure the system is working as designed. I wish more contractors were as great as Vlad! read more

Stable Temp HVAC - Heating & Air Conditioning/HVAC Near Me - San Diego, California

The technician arrived and instantly began reciting that we needed a new system (which we already knew if we could get past the HOA rules) even before opening up the system. After going through the system and taking pictures, he said there was nothing he could do . Instead of showing me pictures and proof, he again said their lead estimator would call. When the lead estimator called and I explained the HOA rules impasse, he tells me arrogantly - have them CALL ME and I'll explain why by law they must allow a new A/C system - an HOA board that doesn't listen to me is certainly not going to call at my behest. Then when I ask if there is a way to squeeze a 410 system into the exterior casing of the 422 system I have, he says he'll ask his boss if they want to take that on, and will call back. He never called. read more

Ivan and team slotted me in on a super hot day (next-day service when the "big guys" were saying 2-3 weeks out) to fix my AC, showed up on-time, quickly diagnosed the issue, had the right part on the truck (capacitor), in and out service. Checked the Freon levels, took a check as payment and on their way. Abouverage/expected cost for an emergency call - no surprises. If you are looking for AC service, these fellas were on-point. Thanks guys! read more

I had a great experience with the whole team from start to finish. The quote process was easy and the price was competitive. They gave us an even better deal when we included a second unit to have the same heat pump installed. The team that came out to install the units were very friendly and efficient (done in two days). They had to deal with constantly changing plans and issues with our neighbors but were always professional and willing to change course as we needed. I don't typically leave reviews but for these guys I had to because of how good of a job they did for us. We're very happy with the results and would recommend them to anyone. read more

Definitely 5 star service to trouble-shoot and repair our older Trane unit. Kevin arrived promptly and really knew his stuff. He was thorough, worked quickly, took care to clean up as he went along, and got our system working great. Kevin took care to explain everything in a way I could understand. We're very happy with our experience with Stable Temp HVAC. read more

Had an issue previously and my air conditioner went out during a heat wave and they came out and fixed it quickly at a reasonable price. I tried to use them again recently for a tune up which is the reason for the lower stars. The tech spent the entire time trying to get me to replace my equipment. I have older equipment that's slow and I probably need to think about it but it's still working. I want to prolong what I have even if it's not optimal. I was verbally told a number that doesn't sound right but have to get the estimate they promised me for that almost a week later. I am having one issue with a vent not blowing any air right behind the hvac equipment in the attic. It's about 3-5 feet from the system and the only vent in the house with an issue. I asked the tech if he saw a switch or any vent disconnected while he was in the attic. He didn't see a switch but I have no idea on the vent. It's the most pressing repair for me. Now I'm wondering if it's disconnected or clogged and which type of tech to call. I had made the mistake of assuming a tune up included a filter change as they had done it with my previous call when they changed out a part. The tech asked me to pay the invoice before he left. Once I got the receipt I saw in the fine print the filter was an additional charge. He was already one foot out the door or I would have done it too and paid the extra fee. I'm really surprised neither the receptionist or the tech even asked if I wanted it done with my tune up. The lowered stars is based on this last cal, not getting any info on the vent, not getting an estimate, not getting the filter, and needing to hire another tech to come out now who will repeat most of the same work. read more

Once they have your money you will never see them again. They do not stand behind the work or equipment they install. A year later my heating and air conditioning is useless. read more

Our commercial landlord gave us 10 days to schedule quarterly inspections for the 2 HVAC units on our roof. We put out bids for 6 HVAC companies in San Diego via Yelp and this company was the most thorough, responsive, and professional. They were able to come out the next day to do the inspection. The 2 technicians were professional, courteous and prompt. They were efficient and knowledgeable. read more

I obtained three quotes for a new HVAC system in my 96 year old craftsmen home in San Diego. All it had was an old wall heater, no ducts, nothing else. Dmyitri from Stable Temp spent a long time at my house, patiently answered all of my questions, explained and educated me on different manufacturers, pros and cons, warranties etc. He provided a quote using high end variable speed units which compared almost identically to other quotes using Trane, American Standard, Lennox etc. No other contractor provided different manufacturers, each used Lennox, Trane etc, but nothing else. He also provided a quote using AC pro, explaining the differences between the units and the value using AC Pro which is what I went with, saving over $3,000 yet receiving a SEER rating of 19.5 vs 20 with other top brands. The SEER is an efficiency rating, so the AC Pro was almost as efficient as top brands yet at a significant value. Also, a 10 year manufacturer warranty whereas Lennox offers only a 5 year. Stable Temp scheduled install one week later, told me exactly when they would show up and the entire project would be completed in ONE day. This is a smaller 2 bd one bath home, but one day to install everything, including the ductwork, seemed incomprehensible. They arrived at 10 am, Dmyitri walked his crew through the house with me, told me it would be finished by 8 pm. By 7:30 pm, Art (the foreman) helped me program the Google Nest smart thermostat and we fired up the system. They finished exactly at 8 pm. I've been loving the system since. Stable Temp also scheduled the required testing and permit to follow. If your looking for a small, professional HVAC company in San Diego, that provides excellent professional installation, and great value, look no further than Stable Temp. PS: during the install, another guy showed up to help in the attic, turned out to be the Owner, Vlad. He didn't mention he was the Owner, I found out later. So their you have it, personal professional service, great value. read more

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Just had these guys install a furnace (including doing duct work and some minor repair to my vents, etc.) and could not have been more impressed. Their communication was consistently professional, showed up when they promised, performed what I considered to be a high quality installation, cleaned up completely, and all of the guys were were polite and professional throughout. I should mention that their prices were below the 2 other quotes we got, one of which (who advertises regularly on TV news stations) was something of a high pressure sales pitch and included a ton of work we neither wanted nor needed. read more

Thank you Vlad for always being there for your customers. As background, our home in La Jolla was constructed in 1972 and while it was very well built, there were definitely some unique decisions that were made when planning for the original heating system. Right after we moved in a couple years ago, we had Vlad and his team come out to replace both units with new furnaces and AC units. One of the furnaces and AC units which fed a large part of the house did not seem to be working effectively (not heating and cooling enough) and Vlad came time and time again to troubleshoot. With the cold winter that we just had, it became apparent that we needed a 4 ton 80,000 BTU unit vs. a 3 ton unit which was installed previously. Despite installing this 1.25 years ago, Vlad took it on himself to replace our 3 ton unit with a larger unit out of the goodness of his heart and after replacing the unit, we still ran into issues as the prior duct work were still feeding air to vents which were closed off. Things are finally clicking, but if it weren't for Vlad's patience and him standing by his company's work, it could have been much worst. @ Vlad - thanks for taking on this challenging house and we appreciate you for all the hours and late nights you've spent here away from your family. read more

Great service! Im going to recommend to my close friends. Extremely pleased.service call rep. was great, very polite and professional. Would not hesitate to refer other friends over. read more

Incredibly impressed with the quick and efficient service. Very easy to book and immediate turn around time. Thank you for fixing our systems and teaching us how to use it!! Very much looking forward to a cool summer Thank you!! read more

Had some heater issues in a rental house. Ivan from stable temp arrived on time and was able to diagnose multiple issues. Ivan walked me though each issue with his equipment. In the end, I decided to replace the heating unit. Ivan did the work the same day and it turned out as promised. The price was reasonable. I would definitely use this company in the future. read more

They came to give me an estimate over a week ago. They came on a Saturday, I came home from a birthday party to meet the guy for the estimate. Several days later I asked if they sent the estimate, maybe it went to my husband, or my spam folder? No. They never sent one. They said wait a couple more days. It never came. Pointless to meet to give an estimate if you don't have the time to send me the proposal. Wasted my time. The gentleman who came was nice while he was here. read more

Our AC is one that I considered "ancient" but still in working condition. Whenever we turn it on, it leaks tons of water to the outside of the house soaking our window and the outside wall. Besides, it's insulation is already eroded and in desperate need of replacement. We had called for service in the past to numerous well known companies but all they had to say is to replace the whole system together with an outrageous amount of money. On the day we contacted some AC repair companies for quotes, they responded quickly and Art, the technician, came the same day to take a look at it. He is very respectful, professional, and quoted the service fairly inexpensive compared to others. He works promptly to fix our AC and in no time it was done. We really appreciate the workmanship that was done. And we will definitely refer them to our friends and family. read more

Stable Temp HVAC - Heating & Air Conditioning/HVAC Near Me - San Diego, California

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My ac unit has been out since last summer and weekends are getting warmer, so I've decided to get it replaced. A good friend of mine recommended Stable Temp as they did great job on several properties she owns. Guys showed up at 8 am (on time), had to move some stuff around to get my old ac unit out of the way. Were polite and professional. Whole job took around 3 hours and they also replaced my old thermostat with the Nest I bought at the Home Depot earlier. To summarize my review, Arrived on time, did job quick and professional, cleaned up, reasonably priced. Now my ac is up and running! Will definitely recommend !!! read more

JUST STOP LOOKING AND REQUEST A QUOTE FROM VLAD RIGHT NOW!! He is Expert. Professional. On-time. Friendly. Communicates, but most importantly HONEST!!! ( I will address this later in my review) My A/C was acting up like a 6yr old waiting in line at Disneyland w/o a fast pass. It was blowing air, but not cold air. I looked on Yelp and found Stable Temp HVAC. Requested a quote, and Vlad responded that he can fit me into his schedule that same day! Vlad arrived at the time that he said he would, identified the problem, gave me a a quote which I approved and returned the next day to complete the job. Why I will always be referring Vlad and his team is because of all of the above, but MOST IMPORTANTLY, he is HONEST and here is why. My A/C was out of R-22 Gas, and I know NOTHING about how much an A/C unit should hold. All I wanted was some relief from the heat. He quoted me 6lbs on the estimate and went up on the roof. After filling our A/C unit, he returns to me and says I only used 5lbs!! LOOK, he could have easily said he used 6lbs and that's that, but he was HONEST, and in his field, this is severely missing!! Vlad, thank you for your HONEST service. I feel like I have a new home now. I will be referring you to everyone in my sphere. read more

Vlad and his team replied quickly, got me on their schedule, and took care of our needs within a few days. The work was professional and efficient at a fair price. read more

Don't accept their advice without checking with another vendor, especially if they advise to refill AC with Freon! They came quickly when our AC was out, tested our 17 year old system and found no Freon in the system and no leaks. The tech couldn't explain it but recommended refill at $1300. Desperate because of a 30 person event that evening, I didn't ask further and paid. Immediately afterward I called Vlad the service manager to ask, how did this make sense, and he muttered something about micro leaks. Two days later, the system was no longer working. They came out again and found no Freon and recommended replacement. They have declined any refund or any professional responsibility for their tech failing to warn me that a 17 year old system might be dead and that the Freon refill, after a mystery disappearance with no leaks, was a gamble. Beware! read more