Lennox Reviews

Horrible customer service experience. My brand new AC's evaporator coil went bad in Year 1, blower motor changed in Year 2. AC coil went bad again in Year 3. I spoke to Carmen at Lennox. No apologies, didn't care. Waiting for 3 weeks without AC and may have to wait another two weeks. They will cover the coil but not $3k+ labor charge. Perfect example of big corporations- don't care attitude.

Lennox will not sell parts directly to the homeowner even if you live in a State with Right to Repair laws. They also have sent updates to thermostats to make them non-functional. Lennox pushes their warranty; however dealers (at least in my area) charge more than the cost of a thermostate just for labor to install it. This high labor cost negates any benefit of the warranty if the consumer pays more than the unit itself for each installation. The unit has been very quiet and efficient. It does a great job keeping the house at the selected temperature. However, the negatives have far outweighed the benefits.

I reported Thursday that my unit was not cooling at all. My unit is four years old and inspected twice a year by Tempo. The fan was dead, and the compressor sounded pretty bad, the Tempo technician said. I am extremely disappointed with Lennox for putting out an inferior product. We are still paying for the unit and now face a 500 install fee for the fan. And possibly a 1900 install fee for the compressor for a four-year-old unit. Thanks, Lennox for covering the parts but not the labor cost on a four-year-old unit????

September 2025. Avoid at all cost. I bought 3 heat pumps for 2 properties in Canada. The compressor on 1 sounds like it’s going to explode on startup. Lennox tech admitted that they changed compressor supplier and replaced my entire unit even though the compressor is the same. Insofar as the second unit, the tech said that ever since the defrost sensor was moved the unit becomes a solid block of ice. Lennox doesn’t give a hoot. Spent over $30,000 on junk! Stay away!!!

Bellows Plumbing: Mini split review. In November of 2023, I needed to replace my old gas wall heater. Our home is older and we needed something new. I decided on a Lennox mini split system after seeing a display at Costco. The package included having Bellows Plumbing, a local HVAC contractor install the system. We had this work done in January of 2024.

I could write a novel of the problems with this company. Their "units" are pure junk and don't even function or operate to accords, see all the other reviews firsthand. I had the unfortunate experience of buying a $10,000 Lennox Unit, and in the first week the damn unit got fried due to a faulty element. About a dozen problems later, "and mind you", this unit is not even 2 years old yet and has been one problem child after another, finally the "coil" went bad in it and Lennox ended up telling me that the coil was on backorder and may not receive the part in over 6 months!!! Absolutely unacceptable. To top it off, this company is rude, offensive, unprofessional, do absolutely nothing to compensate, or even try to help you, no sympathy or understanding for the inconveniencing they cause and I could give them a hundred choice words how low and scum they truly are.

Don't buy Lennox. We have a unit that is 1 1/2 years old, still under warranty and the evaporator coil went out in March of 2026. Lennox is telling us that the new coil wont be available until August of 2026. They build junk and can't even fix it when it breaks. I called their consumer support and they mentioned getting a window unit in the meantime!

Updated on 05/06/2026: I wrote Lennox a letter to describe the problems we had with a Lennox air conditioner coil that was leaking in an elbow, as I expected, Lennox did not respond. After spending $1,800 due to coil problems prior to an installation of a new coil, that was under warranty. but. the installation cost of the new coil was an additional $770. Come on Lennox, respond!!

We purchased a Lennox air conditioner for our home last year. The unit itself has been excellent. However, the 3M Filtrete filters we've been using are a tight fit. We're using the correct size indicated by Lennox. But the cardboard frame is thick enough to require literally squeezing to the point of cutting our fingers before we can slide the filter into the tray underneath the air handler. We called Lennox customer support and found them distinctly unsupportive. After almost an hour on the phone (time we'll never get back!), my wife and were stunned by the answer to our query (as to whether they might suggest an alternative filter). Their answer? No. Will we recommend Lennox to family and friends after this experience? No.

Buyer beware. We had a unit installed last summer and have had over 10 tech visits for half as many issues. It’s a lemon. I called Lennox and had the rudest customer service agent I have ever spoken with tell me it wasn’t Lennox’s problem because they didn’t install it. The unit is terrible and the poor installation company had to be bleeding money on this terrible brand of air HVAC units. CA lemon lawyers to the rescue!

The kitchen HVAC unit installed in the CFA Moscow, Idaho store has not worked for over a month. Kitchen staff is getting sick from overheating. Lennox would not work with local contractors to remedy the situation. Then, when they did go out to fix it, they sent the wrong board for it. More waiting while the store suffers from faulty product. Thousands and thousands of dollars in paper weights on the roof. Useless customer service.

On March 9th, 2026 White Mechanical installed a new Lennox furnace for us. We were offered an electrostatic air filter option with the Costco purchase, but we declined that expensive option. The installation proceeded as expected and the installer did a very clean and professional job. However, we asked the installer to demonstrate how to replace the air filter, we were dismayed at the complexity of the replacement. We must remove the outside cover, then using a special tool, remove the interior cover to access the filter. Then, making sure we do not disturb any of the loose wires nearby, we then remove the filter hold-down bracket with the special tool and swap filters. Then carefully replace all the parts & panels in reverse order until restored.

I had a Lennox installed in Spring, 2015, on the advice of my A/C company. I was not informed nor did I have any knowledge whatsoever about the coil issue which Lennox was already litigating. My coil has failed and I must either spend a significant amount to replace with a legitimate coil or replace the unit which is now 11 years old. My unit should have a 15 to 20 year lifespan but only lasted 11 years. Apparently the class action closed or was soon closing at the time I had my unit installed and I was not informed by Lennox.

I only give this Lennox unit one star because I had to make a choice. My XC20 was installed in Sept 2020 AT A COST OF $20865, including new gas furnace! Annual A/C and furnace inspections performed by installation company. Latest inspection noted a drop in line pressure which was discovered to be caused by a leaking coil. Lennox knew of the leaking coils (see class action lawsuit) yet continued to install these faulty coil after 2015. My coil was covered under warranty but needed to be replaced by a box coil which would not fit into the current housing the faulty coil was in.

Heat pump wiring fried and shorted out by insulation rubbing on heat pump chassis. The unit is two years old and Lennox covered $0 of the $700 repair. Lennox digs in their heels and comes back with boiler plate responses. The CEO makes >$10M per year and is not willing to stand behind his products.

I highly regarded Lennox regarding our 2 HVACs installed around 2011 maybe later. We have had issues with the fancy thermostats and now an inverter board I’m told needs replacement. The cost is outrageous, and as a retired senior I’ve had enough. We will never buy another Lennox product. The high tech products don’t last and apparently costly. I felt the need to post my feelings and warn others.

Lennox systems offers an $1800 rebate on qualifying system which includes heat pump, air handler, and thermostat. The system was installed by their distributor who said my system was eligible for the $1800 rebate. The rebate is a lie and they are dishonest. I am very sorry that I had a Lennox system installed. The company lies.

Very upset. My Lennox a/c and heating unit is one year past warranty and the thermostat went bad. To replace it will cost $100 service fee + $840 + tax thermostat. Almost $1000 for a thermostat??? You can’t use generic thermostats or you lose the efficiency of the system. You must buy a Lennox thermostat. I wish I would have understood all of this prior to going with Lennox. Never again will I make that mistake. I encourage all others to do the same.

I give them a 5 for how well the HVAC operates. My home is very comfortable. I give them 1 star for communication. I have sent the company 2 different emails at 2 different email addresses. No reply from either one. Very poor customer service. They put everything back on the installer. They expect them to handle everything. With their recent agreement with Samsung you would expect more. I can tell you now my next system will not be a Lennox. I will go back to Rheem.

Just had a service person come out to my house for a heater not working, for 10 years the system was flawless, now they are telling me my motherboard has went out and my blower motor may be bad as well. Neither one of these products are due to maintenance and I am really disappointed with the product. I wish I would have known all the problems before installing this product. We had to go through the Hero program as we could not afford this any other way. Now we are going to have a big bill. Not happy

It has been an extremely frustrating experience dealing with the rebate process for my new Lennox system. We had a Lennox air conditioner and furnace installed on June 26, 2025, and I immediately applied for the $250 rebate. However, as of today, I still have not received it. The only point of contact for rebates is the Promotions Consumer Team. When I emailed them, I was told that the rebate MasterCard had been sent in November 2025 — which we never received. They promised to resend it, but it still never arrived. Further emails went unanswered.

Our Lennox Merit series ML14XP1 heat pump unit has been a total disaster. In the 5 years we have owned the unit, we have had to have 3 major repairs to the outside evaporator coil assembly, each time causing the gas to completely escape. The first time, the manifold was incorrectly brazed during manufacture, which the service technician re-brazed. The second and third time it was the copper tubing leaking (proved under a pressure test). This nonsense is unbelievable. The service technician told me the only recourse is to buy another complete heat pump assembly, which will also require a new air handler. This is a warning, based on my experience, DO NOT BUY A LENNOX MERIT SERIES heat pump!

The air handler or some other parts have a serious problem. I would like to inform potential buyers to not purchase one. 2 years in a row when going from using heat to using cool a disgusting smell develops called dirty sock syndrome. At less than a year old. Cost of unit $6000. 6 techs could not find the problem. I gave up and called another company from the ones who sold and installed it. They installed a wave R for $900 and the smell was gone. That was last year. This year it happened again after using the heat.

We bought a Lennox Elite heat pump 2 years ago because our old heater kept freezing up in cold weather. We bought our Lennox through Royal Air in Chico, California. I'm very disappointed in the performance of this unit. When the temperature goes below 40°, the heat pump blows cold air for 20 to 30 minutes before the warm air begins. During that 30 minutes of cold air, it brings down the temperature in our house at least 5°. So now when it gets cold outside, it's like having the air conditioner on. We've had Royal Air technicians come out on several occasions and they tell me that heat pumps take 20 to 30 minutes to blow warm air and that's just the way it is. They tell me they get a lot of customer complaints about it. So am I supposed to just live with this? The air conditioner works great, but the heater is very disappointing.

As a reminder to anyone buying a new home be sure to register your air handler, condenser, heat pump, etc., separately. Don't just register one piece of equipment. You must register each and every piece. If you do not register within 60 days, you will have no 3-year labor and 7-year parts warranty. I would bet that 95% of people do not know this fact and new home builders and/or installers might not tell you. Who likes warranty work? If you were told, consider yourself lucky. This is just my opinion. Do your own research! One last point, Lennox Consumer Affairs said this to me via email, "Unfortunately, we cannot control what information the builder or the installing contractor provides consumers." Wow...that is so wrong.

I'm a heating contractor. A client has a Lennox air handler. 5 years ago I installed a new boiler to feed the air handler. This winter the blower motor on the Lennox stopped working. I spent 2.5 hours on hold with lennox for tech assistance. It was confirmed that I needed a new control board. Any other part for a heating system I can find a local supply house. Called a dozen places to no avail. Called lennox again and was told I could only get the part through them but they wouldn't sell me the part because I don't have an EPA number. Was able to order the part off of Amazon.

We recently replaced our 15-year-old Goodman heat pump with a new Lennox Elite system, and unfortunately, the experience has been disappointing. Our monthly electric bill is noticeably higher than it was with the old unit, which is frustrating given the expectation of improved efficiency. Additionally, when the outdoor temperature drops below 25°F, the system struggles to keep up and maintain a consistent comfortable 65-degree indoor temperature. On a positive note, Comfort Solutions has been very responsive and helpful throughout the process, which we greatly appreciate. However, our dissatisfaction lies with Lennox as the manufacturer of the blower and heat pump. We expected better performance and reliability from a brand with their reputation.

Please don’t buy a Lennox if you live in a place (like Canada) where you NEED a furnace. Everybody at Lennox is numb to the fact that being without a furnace due to lack of parts for Dec/Jan doesn’t work here.

Do not buy Lennox! They claim to be high-end, but their systems fail and are extremely costly to repair. I put a brand new system in my home 3 years ago and the heat pump has already failed. I was quoted $2400 to repair it, which is wild since I paid $3500 for the heat pump just 3 years ago. I am a licensed realtor and I cannot stress enough how I will never recommend this trash company to any of my clients.

I'm retired/licensed HVAC tech. Due to the high cost of repair my original AC unit, I hired Sierra Air Conditioning/plumbing to install the most expensive high-efficiency with multi-speed unit in 2023. The AC was acting up in June 2025, and I called install company for services. The company tech tried to repair the unit more than 10 times until the weather was cooling down and there was no need for AC. I have to wait to verify if the system was fixed by next summer. Now as we turned on heater in November, it takes over one hour to heat up 2 degrees in our bedroom. Tech came again, tried to adjust air flow, but it doesn't seem to help anything. I don't recommend to buy expensive and unreliable Lennox air conditioning system.