question on inducer fans carrier. gas furnace


Old 01-10-12, 05:42 PM
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question on inducer fans carrier. gas furnace

This is going to sound like a "dumb question"


My carrier forced air heater has an inducer fan that runs throughout the heating cycle. It kickm in just as the unit calls for heat and clears the chamber, Is this normal or should it shut down as the furnace begins blowing air with the blower motor or once the ingnition take place?
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Old 01-10-12, 09:09 PM
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The inducer motor should be the first thing turned on when the thermostat calls for heat. Once it comes up to speed and creates the proper pressure conditions in the furnace, the pressure switch should close and the hot surface ignitor turn on and heat up and so on.

The inducer motor should remain on until the thermostat shuts it off, which also shuts off the main burners. The fan continues circulating air arounf the house until the heat exchangers cool off.

It sounds like your furnace is running correctly if I'm interpreting your remarks accurately.

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