I'll try to make myself as much clear as possible (given that english is not my first language !). I live in Montreal (Canada) 2 years ago i've buy a Lennox heatpump (xp14). Everything was fine until 2 months ago. Here the winter can be hard, but most of the time it's ok. So my heatpump was set to let the auxiliary heat (a forced air furnace) make the heat when it's less than -9 celsius outside.
One day, the outside temps was something like 0 celsius) I noticed that there's cold air getting out of the vent instead of heat as usual. I've check the heatpump, it was not on defrost. When they install my heatpump and the Thermostat ( honeywell prestige hd) they told me the code to go in installation mode. So that day i've check all the setting using the code they told me. I've try to change some things and I noticed that O/B valve setting was on O (Cooling). So i've changed to B (heating). That doesn't work. So i've decided to let that go and put my thermostat on emergency heat, this way the heatpump was kind of desactivated.
Todays a give the guy who install my heatpump a call to check that. He open the wire panel and notices that my heatpump was stuck on ''cooling''. I've told him what i've done 2 months ago. I looked at me and told me ''You have blown your compressor by doing that. There's no way i can change that under warranty. It gonna cost you someting like 2000 $ to change that''.
I'm kind of shocked, is there a possibility that there's something less bad than the compressor who gone wrong ?
If i wasn't authorize to ''play'' with my Thermostat why does it give me the code ?
Do you have any advice from now ?
Thanks for reading my long, and maybe confusing, post !