Ask Experts Questions for FREE Help !
Ask
    topcatii's Avatar
    topcatii Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Aug 17, 2014, 11:51 AM
    Goodman Furnace Model # GMT045-3
    Im getting a twinning error code on the furnace. I just replaced the board and had to use the wiring diagram on the unit to install the new board, because someone removed the old one and through it away. I have reversed polarity on secondary 24v and main power, also checked it with a meter it's rite. I double checked the wiring to the board and found no problem, any suggestions would be appreciated.

    Thanks, Mike
    bitters's Avatar
    bitters Posts: 348, Reputation: 12
    Full Member
    		  
    #2

    Aug 17, 2014, 02:08 PM
    Reverse the wires on the primary side of the transformer.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Goodman furnace orifice location model gmt070-3b [ 2 Answers ]

Need to convert to lp but don't know where to find orifice location

Goodman furnace model capf3030b6ba [ 1 Answers ]

October 2010 a had a new house built. The furnace and ac is a Distinctions. The model number is: CAPF3030B6BA and serial number is: 1006766521. In a 1 1/2 years the compressor has gone out. I would like to know if this model continues to be made and if compressors are readly available. ...

Goodman Furnace Model GMPN100-4--No Heat [ 3 Answers ]

The inducer fan motor starts,the hot surface igniter heats up and the gas valve opens producing a nice blue flame for 3 or 4 seconds and the gas valve shuts off. There are no red flashing lights to indicate a problem with any components. This unit was built around 1993. Any ideas on what might be...

Goodman furnace model number gmp125-4 rev b? [ 0 Answers ]

Hello, I have a Goodman furnace model number gmp125-4 rev b. It is not turning on. I had a new eletrical panel put in and the furnace is hooked up to a 20A breaker. The furnace's control board lights turn on, the e-com light turns green and then turns off, after that the status light turns on...

Goodman furnace model GMT 015-3 [ 1 Answers ]

The blower works when thermostat is switched to Fan, but there is not heat. Once I switch to Auto, there is not heat and the blower does not work. Temperature is set above the current room temperature. Would that be caused by a board issue? The red light just stays on, does not blink at...

View more questions Search