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trieuphu99 04-06-2010 02:03 AM

carrier gas heater
:mad:Hi,My gas heater is just stop working.Now the blower is keep running all the time no matter i turn to heat or ac.Normally when i put the thermostat to heat the furnace on for few seconds than the blower is running.Please help me any body.Thanks alot

beenthere 04-06-2010 05:17 AM

Is/was your air filter dirty/plugged?

Might be off on its high limit. When was the last time you changed/cleaned your air filter.

trieuphu99 04-06-2010 09:33 AM

carrier gas heater
My filter is brand new. The high limit sensor how is it work? when is it contact and when is it not contact? How can i test the high limit?Thanks Pro.

beenthere 04-06-2010 02:52 PM

The high limit is to be closed when ever the temp is senses is below its trip point.
It only opens when the air temp is TOO hot.

An ohm meter will tell you if its open or closed.

How dirty was your old air filter you just changed out?

trieuphu99 04-07-2010 12:03 AM

Thanks.I got it fixed.Again,thank you so much for help.:thumbup:

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