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New Nest, old Honeywell thermostat wiring question

Wilbaggins
Community Member

Old HW thermostat has a yellow wire which connects to Y but then continues over to W. System is a heat pump.

So which or both (Y or W) go in compatibility checker? 

When connecting to Nest does that yellow wire go to Y or W. 

Other wires: red to R, white (or beige) to O, green to G

Thanks for any help, 

Bill

Photo below: product_image.jpg

5 REPLIES 5

Aby
Community Member

I think that you a jumper. If that is correct just remove it and connect the rest of the wires!

Wilbaggins
Community Member

Clearly a jumper but not a typical one since it's all 1 wire. So, would I connect yellow to Y or W on the Nest. I don't know which of the 2 jumped connections to eliminate and which to use. 

Hard to see but the yellow wire is stripped in about a 1/2 inch wide section 3 inches from the end and connected to Y but then the end is stripped and connected to W. Since I can only connect this yellow wire to one terminal I have to pick either Y or W,  to put it another way. 

Jake
Community Specialist
Community Specialist

Hey Wilbaggins,

 

I just wanted to follow up and see if you still need any help with the wiring for your thermostat? Please let me know if you have any questions from here.

 

Best regards,

Jake

Jake
Community Specialist
Community Specialist

Hey all,

 

I just wanted to follow up. Please let me know if you are still in need of any help, as I will be locking the thread in 24 hours. 

 

Best regards,

Jake

GarrettDS
Community Specialist
Community Specialist

Hey folks,
It looks like we haven't heard back from the OP so I'm going to go ahead and lock the thread. If you have any further questions or concerns, feel free to create a new thread.

Have a great day,
Garrett DS