PDA

View Full Version : Goodman AC/Furnace: condenser not coming on after installation of new blower motor


alloyd
Jul 21, 2007, 05:28 AM
Have and outside Goodman AC unit and Goodman furnace (inside duh!). Anyhoo, after installing new blower motor the AC unit will not kick on. Have reset outside breaker, and double checking wiring on controller board on furnace, noticed one blue wire was disconnected, reconnected that and still not working.

New installation >>two connectors on controller board labeled park, that were previously connected on old setup up; consulted a furnace expert, over the phone and said PARK means that they do nothing...

Blower motor is a three speed>>
Black (High) is connected to Cool H on controller board
Blue (Medium) is connected to Heat H on controller board
Red (Low) capped off
Yellow ( Line) is connected to Line Neutral on controller board

Controller Board
Red and Blue from controller board marked PARK are capped off

Need help on steps to get AC working again, anything helps!

hvacservicetech_07
Jul 21, 2007, 10:13 AM
First make sure that you didn't pull any of the low voltage connections loose at the botton of the control board.

NorthernHeat
Jul 21, 2007, 10:24 AM
Does the inside blower start when you turn the thermostat on cool? Did you follow the thermostat wires from the outside unit back to the furnace and make sure the 2 wires are connected in the furnace?

alloyd
Jul 21, 2007, 11:22 AM
The inside blower motor does kick on when thermostat is set to cool, yes. The outside is not starting up.

alloyd
Jul 21, 2007, 11:28 AM
My concern was the two PARK positions on the controller board Goodman

NorthernHeat
Jul 21, 2007, 11:43 AM
Park terminals are for the unused blower speed wires. I think you knocked the thermostat wires for the condenser off. One goes to the yellow wire from the thermostat and the other one goes to the chassis ground.

alloyd
Jul 21, 2007, 12:13 PM
Yup that was it! The lead from thermostat was conncected to the TWIN terminal, the only one that did not have a wire connected to it, typical male response, hmmm loose wire, all terminals are connected but this one, (eventhough it says common line) can I get a home DOH! Please do not DEE DEE DEE me, OK? Thanks for the help and prompt answers.