Nest W2 question...


Old 02-24-13, 11:09 AM
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Nest W2 question...

Just home installed the Nest, super easy - but I received an E8 error because I only had the W2/Aux wire installed, without a W1.

My old thermostat ONLY had a white wire going to W2, and no input for W1. Called Nest for service and they told me to remove the W2/Aux wire and connect it to W1. Does this sound like I'll lose any Aux Heat functionality? Or does this sound like I'll potentially damage my heater or equipment?

The service tech on the phone sounded confident that was the correct swap, but since it didn't match my previous setup, just wanted to get a second opinion.


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Old 02-24-13, 01:53 PM
hvactechfw's Avatar
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connect it to W1.... Nest is NOT a good thermostat for a HP system same as any other programmable thermostat. HP systems are best left at the same temp all the time in heating mode.
Old 02-25-13, 06:09 AM
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I agree with Kevin, set it and forget it.

HP are not the best recovery system, and takes a long time to recover on set back.
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