No y connection


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Old 10-30-20, 05:05 PM
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No y connection

Hi everybody I have gas Goodman forced air furnace with ac coils and outside condenser- what I cant understand it word fine in heat or cool mode however on the control board I have wire going to the R, W , G, and C but I have no wire going to Y (cooling)
like wise on my nest thermostat I have 4 wires attached to Y1 W1 G and Rh my question is where does the 2 wires from my condenser go to if there is no Y wire attached on the control board- can anyone explain how that is ossicle thanking you in advance Tom
 
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Old 10-30-20, 07:13 PM
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Welcome to the forums

4 wires attached to Y1 W1 G and Rh
Ok..... that makes sense.

R, W , G, and C
Ok.... and that makes sense.

Your R wire on the board goes to Rh at the stat.
Your G wire on the board goes to G on the stat.
Your W wire on the board goes to W1 on the stat.

Your C wire on the board goes to the outside condenser.
Your Y1 wire on the stat goes to the outside condenser.
The Y is compressor and does not always connect to the board so it will be a splice near control board.
 
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Old 10-31-20, 08:48 AM
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Thank u

thank you pjmax for the life of me I could not figure how that worked seeing no connection to the y on the circuit board- Is this a normal way of connecting the compressor?
 
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Old 10-31-20, 10:12 AM
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Yes..... pretty normal.

Some control boards use the Y wire/connection to change blower speeds. Heat would be a slower speed while cooling would be a faster speed. Many installers are just too lazy to connect it.
 
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Old 10-31-20, 10:48 AM
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Thank u

hey pjmax thank you for the info!!
 
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Old 10-31-20, 10:50 AM
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You are welcome.............................
 
 

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