Lennox HPXA19 Heat Pumps

Lennox HPXA19 Heat Pump Overview

The Lennox HPXA19 is a discontinued split-system heat pump with efficiency ratings of up to 18.6 SEER and 9.3 HSPF. It featured a two-stage scroll compressor and was designed for both ground and rooftop installation. A system operation monitor detected common fault conditions in the system and communicated diagnostic codes through a series of LED lights. The unit was also equipped with a biflow filter drier, high and low pressure switches, and a defrost control. The HPXA19 used R410A refrigerant.

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Consumer Reviews of Lennox HPXA19


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #4 of 17 Lennox Heat Pump
  • 33.33% of customers recommended

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Lennox HPXA19 Heat Pump Reviews

"Coil replacement"

1.0 rating
Very Unsatisfied

We have had this system only a little over five years and have three holes in our coils. It cost us a service call which was $232.00, along with having to replace the coil system which was another $932.00. We are very unhappy with the Lennox system. When we have to replace the total system it will not be Lennox. I'm a very unhappy customer. Our first system lasted us 14 years, it was by Rudd.

Jeffery Barneycastle

Mocksville, NC

"Horrible and Unreliable!"

1.0 rating
Very Unsatisfied

We live in Phoenix…enough said! We have a 7 yr old unit and we are now in our 2nd summer of non stop breaking down of the unit. Today it was 111 outside and the unit overheats and shuts down. Thank god we have a 10 yr warrenty, but the unrelible feeling of this crappy unit is nerve racking and down right dangerous. We are getting the Lennox field service rep involved and I plan on call Lennox corporate office to demand a new unit. This has been a nightmare…………….stay tuned! I recommend you never buy a Lennox!

V Elleray

Phoenix, AZ

"Reliable Heat Pump"

5.0 rating
Very Satisfied

My hpxa19-036 heat pump has been everything I expected from a top of the line heat pump. No troubles. It's matched up with a top of the line air handler w/ a variable speed blower. My father & uncle both own the same model indoor/outdoor units as well, installed by the same dealer and their units have given them zero trouble. All three of us service our units twice a year as well. For those who have had expansion valve failures, there has been a higher failure rate industry wide the last few years, not just Lennox. You could have bought a Trane and had the same problem. Studies I have seen prove the better the dealer sticks to recommended installation procedures (purging nitrogen while soldering), the lower percentage failure rate. So choose your dealer wisely.

K. Jones

Other HPXA19 Reviews

Among the very few comments on HVAC forums regarding the HPXA19, a consumer on diychatroom.com stated that his unit was having cooling problems. An HVAC tech on the site suggested that he may be low on coolant. A consumer on hvac-talk.com having problems with his unit not lowering humidity was advised by professional members that the unit may be sized wrong and there could be a problem with the humidity sensor or the thermostat.

HPXA19 Warranty

The warranty for the Lennox HPXA19 heat pump is comprised of the following:

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

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