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Old 01-29-2011, 02:26 PM   #1
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blower will not run


i have an intertherm model MGHA furnace in a mobile home.the burner ignites but the blower will not kick on. blowe will work if switched to fan from auto setting so motor is ok

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Old 01-29-2011, 02:36 PM   #2
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blower will not run


Is there a circuit board on your furnace? If so that also controls the fan on a timer. probaly needs replaced.

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Old 01-30-2011, 06:22 PM   #3
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blower will not run


Or bonnet switch has failed. The thermostat turns on the gas burner, a temperature increase in the bonnet (or heat exchanger) activates a thermal switch that turns on the blower.
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Old 01-30-2011, 11:06 PM   #4
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blower will not run


Quote:
Originally Posted by maggieblue View Post
i have an intertherm model mgha furnace in a mobile home.the burner ignites but the blower will not kick on. Blowe will work if switched to fan from auto setting so motor is ok
all modern furaces time the blower on delay,they rarely,if never use temp anymore .replace the control board and youll be fine
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