Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Trying to install new Honeywell TH8110 thermostat

We have an old thermostat with wiring letters O, W2, E, G, R, Y,and L. So we are trying to figure out which wires corresponds with the new thermostat.
We have a heat pump.

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  • Todd Born
    Todd Born May 11, 2010

    THAT WAS APPARENT WHEN YOU SAID O, W2 AND E. WHAT TYPE OF STAT DID YOU GET?

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  • Master
  • 700 Answers

ALL OF TEM
EXCEPT L

Posted on Mar 07, 2009

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