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LENNOX Signature Central Air Conditioner

Updated: Feb 10, 2015

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Read more about LENNOX Central Air Conditioners

Overview of the Signature

The Lennox Signature is the company's top series of air conditioners and is comprised of three units - the XC17, XC21 and XC25. The XC17 has an efficiency rating of up to 18 SEER, while the XC21 and XC25 have efficiency ratings of up to 21.2 SEER and 26 SEER. The Signature has been named one of the Most Efficient Energy Star qualified products of 2014. A SunSource solar-ready option allows the addition of solar modules to create a solar powered system to reduce energy consumption and costs. The XC17 features a single-stage compressor and the XC21 a two-stage compressor, while the XC25 features variable-speed cooling. SilentComfort technology and a precision molded compressor sound cover provide low sound levels, and the heavy-gauge stainless steel cabinet has a baked-on powder finish to prevent rust and corrosion. The Signature uses R-410A refrigerant.

Consumer Reviews of the LENNOX Signature

#17  of 19 Lennox Air Conditioners
1 of 5 stars 5 reviews

  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied

Date created: 2014-06-02 Name: R Rozzi
Location: Palm City, FL

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

"Lennox is GARBAGE"
This is a 7 year old unit that was plenty big enough to handle the house. Every time they walk in it costs me a ton more money. Now the 7 year old compressor is gone and $1300 to replace it. They wanted to replace a valve on the air handler at $529 and I told them it was nonsense. After the last technician came he said it was not the valve but the compressor. I have their waste less Maintenance Plus program. 10 years on parts and 10 years on compressor. The charge of $1100 is only the labor same as the valve they wanted to replace. So don't buy Lennox and if you do you want a maintenance contract that covers parts and labor so they can't rip you off. I have a contract with Service Experts and will not renew again. I get a different technician every time and they don't seem very technical to me. The last unit at this house went for 22 years! Don't buy Lennox. It is Garbage

Date created: 2012-07-12 Name: Dr Frank Simo
Location: St Louis, MO

Satisfaction Rating:

2 of 5 stars Somewhat Unsatisfied

"Dave Lennox Signature Collection"
My understanding was this was the top of the Lennox line with only one model above it. Expensive. Yes, it is efficient, quiet and attractive. After owning it for only 1 1/2 years { I live in the midwest, so it only is in use when the temperature is above around 80 degrees: 6 months or less per year.} the fan goes out on the compressor on a 100 degree day. I was shocked to have a malfunction with this level of use. Couple this with the fact that the service tech buffoon replaced the new fan motor on my only {other} functioning unit and not the faulty one only added to the problem. This coupled with a $188 service charge! The motor was covered, not labor!! I know the service charge is not the fault of the manufacturer but it does reflect on the whole customer service/quality control issue, especially when repairs are flubbed up. High end products should have high end dealers and service. Except for this episode the units have worked as expected but they are still quite new. I would not expect this type of failure this early in a unit costing this much. For those shopping these, also look at Trane products and cross shop reliability and warranty service. Negotiate the service warranty!

Date created: 2011-07-25 Name: D Evans
Location: Eastman Ga.

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

"Bad for business"
I bought my same exact unit in Apr 2007, same model as Chuch Harris in Nashville, tn. Same exact problem. If no one builds a product that they can stand behind, should they even be in business??? Never again will I buy a Lennox anything...

Date created: 2010-06-25 Name: Al Knauf
Years owned: 4

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

"Coil Replaced 3X"
I have the top-of-the-line seer 21 Signature series. This is the third leaky coil to be replaced. Sure, parts are covered but a $938 labor charge?? Robbery! A bad thermostat costs $177 labor to replace when the part sells for $156 on the 'net and it's a snap-on job with minimal programming. No coverage on labor and coolant and the repair people charge enough to cover the part and labor for just the labor alone. Addressed my concerns to CEO Bluedorn. His secretary, Sue Manno, received it. No response. I will join you in a class-action lawsuit. Call me at 214-675-8827.

Date created: 2009-06-23 Name: J. Sutton

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

"Lennox Lemon X19"
I have owned this unit (heat pump/AC xp19) for all of 7 weeks; within that period of time, the entire system has had to be replaced; it breaks down at least once per week -- and today is broken down again (it's June in Florida and not pleasant). Lennox customer service at 972-497-5799 offers absolutely no assistance. Our local dealer/installer is sincerely trying constantly to remedy the continual break downs. Lennox manufactured this unit; Lennox has failed to assist us or the dealer.

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Other Signature Reviews

Among the few reviews on HVAC forums regarding the Signature air conditioner, there are a couple of comparisons on gardenweb.com between the Signature and similar air conditioners from Bryant, Carrier and Trane. The comments appear to be evenly divided, with the differences in cost and price quotes being discussed most.

Signature Warranty

The warranty for the Lennox Signature air conditioner is comprised of the following:

  • 10-year limited warranty on the compressor
  • 10-year limited warranty on parts

An Extended Limited warranty and a Complete Care Plus Extended warranty, which covers parts and labor, are also available.

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