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Reading Cool State 2, But not kicking on

THJA
Community Member
10 REPLIES 10

Patrick_Caezza
Diamond Product Expert
Diamond Product Expert

@THJA 

Can you post a picture of the original thermostat wiring?


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The Nest to include the picture of how the wiring were is as is when we purchased the home.

THJA
Community Member

@Patrick_Caezza

The Nest to include the picture of how the wiring were is as is when we purchased the home.

Patrick_Caezza
Diamond Product Expert
Diamond Product Expert

@THJA 

Interesting. Can you post a picture of the terminal block on the control board in the furnace?

The green wire being connected to the Y2 terminal might be a problem


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THJA
Community Member

@Patrick_Caezza

Can't get to the control board this evening.  But the unit was working according to its usage history, but it's stuck in Cool Stage 2 now.  We don't recall seeing this previously.

Patrick_Caezza
Diamond Product Expert
Diamond Product Expert

@THJA 

No worries, post it when you can.


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Hi there,

 

Thanks for posting in the Google Nest Community forum. It seems like the reason why your AC isn't kicking on is because you don't have a wire for the fan (G). Could you please move the green wire from Y2 terminal to the G terminal? Make sure to turn off the breaker first before touching the wires. 

 

Let me know how it goes. 

 

I appreciate your help, @Patrick_Caezza.

 

Best,

Jenelyn 

Jenelyn_O
Community Specialist
Community Specialist

Hi THJA,

 

Checking if you were able to try my suggestion. Please let me know how it goes. 

 

Thanks,

Jenelyn

Jenelyn_O
Community Specialist
Community Specialist

Hey THJA,

 

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know. 

 

Regards,

Jenelyn

THJA
Community Member