Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
I have a vison pro th8320u and i cant get aux heat to operate also aux heat on will not come up on the touch screen.
Posted on Jan 10, 2009
What kind of system do you have (furnace with heatcool, heat pum or boiler )? Is there a themostat there now. How many wires does it have. If you have a furnace and you have heat&cooling install red wire to r on thermostat white wire to w and green wire to g. The g wire is usually for the fan. If there is a thermostat there now the old one should have the same letters on the back by where the wires hook up. The color of the might be diffrent than the ones i used for an idea.
Posted on Jan 18, 2009
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Posted on Jan 02, 2017
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