Question about Honeywell Programmable Thermostat Heater

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Honeywell CM901 - i want to change my thermostat like for like - is it as easy as just replacing and wiring the wires in the same as before?? am i right in saying there is no electricity supply to the thermostat its just wired direct to the boiler??

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In some cases yes and Depending on the thermostat some have a 24v power feed. If you have a basic heat only you should only have two wires ( Red White ) unless some one did a home job where the color code is not right.

Posted on Oct 20, 2013

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