Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
What replacement thermostat by Honeywell will work. Four wires - two from transformer by electric box to thermostat then two wires from thermostat to furnance. Can't seem to find one to fit<
The two wires from the transformer are to run the clock in the old thermostat. If you connect the two other wires to any heating thermostat, it will work. Don't forget to disconnect the transformer wires. Hope this helps
Posted on Jul 09, 2009
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Posted on Jan 02, 2017
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