Duo Therm Heat Pump weirded out
I have a less than two year old Duo Therm Heat Pump that has suddenly started having the compressor run anytime 120 volts is to the unit. Only if I shut off the breaker will the compressor stop runnin...
Forum Discussion
As usual Doug knows his stuff. Since you have a 5 button Tstat and it's defaulted to heat it's a old style unit (like mine) and the control board is 3109229.009.
I would try a Tstat reset although it sounds like a control board:
SYSTEM RESET
a. Turn the ON/OFF switch to (OFF) position.
b. Simultaneously depress and hold the MODE and ZONE
push-buttons while turning the ON/OFF switch to (ON).
FF should appear in the LCD display until the MODE
and ZONE push-buttons are released signalling proper
communication between the Tstat and upper control
board.
If you do not get FF then I would try cleaning the contacts on the phone plugs that connect the Tstat and control board.
$125 on Ebay.
I would try a Tstat reset although it sounds like a control board:
SYSTEM RESET
a. Turn the ON/OFF switch to (OFF) position.
b. Simultaneously depress and hold the MODE and ZONE
push-buttons while turning the ON/OFF switch to (ON).
FF should appear in the LCD display until the MODE
and ZONE push-buttons are released signalling proper
communication between the Tstat and upper control
board.
If you do not get FF then I would try cleaning the contacts on the phone plugs that connect the Tstat and control board.
$125 on Ebay.
