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Old 04-06-2007, 09:21 PM
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bloodrayne bloodrayne is offline
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Quote:
Originally Posted by Despare View Post
The thermocouple senses if the pilot is hot enough to burn the gas. If all's good it keeps the main gas valve in the pilot open. If the thermocouple fails it basically just reads the pilot as out and won't open the gas valve. Probably the single most common furnace failing and is quickly/cheaply (under $10.00) fixed.
And that will make the FURNACE not work...Not just the thermostat...A clogged/very dirty coil and/or blower motor will cause the igniter to burn out, and the safety switch will kick it off, but that makes the furnace not work, too...Thermostat is usually something much simpler...Wires or something
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