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Nest 3rd gen cooling when heat turned on

Bhattnbikes
Community Member
  •  Hello,

    I recently replaced my Honeywell thermostat with nest 3rd gen learning. Turns out when i turn the heat on, the system is actually cooling. 

   I had followed the wiring schematics the bast i could but i assume i made a mistake. Any guidance is appreciated.

1 Recommended Answer

@Bhattnbikes 

Try this wiring.

Yellow - Y to Y1

Green - G to G

Blue - C to C

Red - R to Rc

White - W to W1


To ensure that I see your reply, please tag me using @Patrick_Caezza

View Recommended Answer in original post

4 REPLIES 4

Bhattnbikes
Community Member

https://postimg.cc/gallery/gmHWD1S

Pictures showing my original thermostat connection and wiring for Nest

@Bhattnbikes 

Try this wiring.

Yellow - Y to Y1

Green - G to G

Blue - C to C

Red - R to Rc

White - W to W1


To ensure that I see your reply, please tag me using @Patrick_Caezza

@Patrick_Caezza  Thank you so much! I switched the wires like you said and heat did kick off and seems like its working. I will play around with settings some more and report again.

    How was the Nest instruction and videos all off by so much?