Thermostat Wiring

[Jim Katen]

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I was always interested in how heat pump thermostats are wired and I gained some insight today. For one thing, I've been wrong about the color codes. Apparently, they're as follows:

B = Black

O = Olive

G = Gold

Y = Yed

W = Worange

And it's good to know that the white wire isn't used.

(No. The heat pump was not working properly.)

My theories:

The installer was colorblind.

The installer was really stupid.

The installer was really smart.

This is what happens when pot becomes legal in your state.

[Rob Amaral]

"it never ends.. .."

[mjr6550]

Hook up the brown wire and it will work fine.