Heat Pump Locked in "OFF" mode

[Mike98654687]

I have a U.S. Airwater Products Heat Pump. It's only 2 or 3 years old.
Serial # 1801199.

All was working well until it abruptly stopped running, and the screen displays "OFF". It won't let me change the mode or temperature. I've turned the breaker off, waited a day, turned it back on, but no change.

US Airwater is now out of business, and the company that installed the heat pump tells me they can no longer service it.

I'm hoping there is an easy answer to this. A hidden shut off switch? Etc.

I have little experience with heat pumps except to say this was too expensive to stop working after only a couple of years.

Can anyone share their thoughts?

 

[swamprat69]

This looks like the manual for your heater. http://neairwaterproducts.com/wp-content/uploads/2018/03/OwnersManual3-21.pdf Page 7 shows start up instructions. Wiring diagram on page 5 shows the connections on your control board and instructions for using remote thermostats and controllers.

 

[Mike98654687]

thanks for the manual.

the wiring is beyond my comfort level.

the start up instructions aren't helping because it states "OFF" and doesn't allow me to select pool or spa or anything for that matter.

 

[swamprat69]

I tried to access the manual again at the link that I posted , but it won't allow me access. By any chance did you download it as a pdf that you can attach?

 

[JamesW]

REMOTE THERMOSTATS AND CONTROLLERS:

If a remote thermostat or any other control system is to be used to turn the heater on and off, a normally open dry contact can be made at terminals labeled POOL/SPA on the bottom right of the electronic control board.

In the case of a remote thermostat where the temperature will be regulated externally, set the POOL MODE to the OFF position and the SPA MODE to 104ºF (40º C).

The heater will only run when the remote control calls for heating (circuit closed)

Do you have automation?

Check the control board for a remote control.