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Upgrade RHEEM thermostat to Nest 2nd Gen learning thermostat

uamog
Community Member

I'm trying to upgrade RHEEM thermostat to Nest 2nd Gen learning thermostat. In the existing thermostat i have 4 wires:

R - Red, C - White, E1 - Yellow, E2 - Green

 IMG_5492.JPG 

my understanding is that Red goes to power RH, Green goes to Green, white goes to W1 and yellow goes to Y1. I have tried it but the thermostat is not recognizing heating or cooling? what am i doing wrong?

1 REPLY 1

EmersonB
Community Specialist
Community Specialist

Hello uamog,

 

Thanks for reaching out here in the Community. To know more about this issue, I’d like to confirm, do you have a heat pump or a separate system between the heating and cooling system? Do you still have the manual of your Rheem? If so, you may check the meaning of E1 and E2. Let us know your update here.

 

Regards,

Emerson