Hmmm, I just removed the front cover (which has been somewhat difficult to get one top tab in - and it feels tight) and the darn thing started right up and cooled very well. Maybe the cover is pinching something? It's only 67 degrees outside now - when I have the trouble, it's been 80 or so. I'll try it later when it warms up.

 

I glanced at the manual, saw no E8 code.

 

Thank you for looking! I can't find anything showing that code either. I'll see what happens with it. I'm near Seattle and it looks like our 3-day heat wave is over until July 5th...

 

Should have 1 year parts & labor warranty.

 

X2
Call the installer back

 

If it still continues E8'ing me, I'll try that - thanks!

 

Well, it's done it again (twice). I finally found a list of error codes and it says E8 is "Condenser anti-high temperature protection".
If condenser temperature is too high several times in short time, the unit will enter into this protection, this means the unit can not continue running. Unplug, plug in and turn on power, unit will exit the protection.

What would cause high temperature in the condenser? Does it just need a new one?
Thanks!

 

Outdoor fan motor quitting or bad sensor. Unit is too new to have a dirty condenser coil.

 

Thank you, Sir. I looked into the warranty and unfortunately, it says the unit cannot have been bought online and it had to be installed by a pro. I bought it online and pulled my old heat pump and slid this new one into the old sleeve.

I have the schematic now and see many sensors - I'll study it and try to figure out which one to swap out. This morning it's been running in heat mode for 2 hours so I assume the motors are OK.

 

In heat mode, the condenser is the indoor coil, in cool mode it is the outdoor coil.

 

Thanks again! You're a wealth of knowledge. I'll slide it out today and take a peek - maybe a mouse made a nest or something.