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Furnace primary limit switch.
A limit switch is a device that s located under your furnace s supply plenum.
When your furnace begins a heating cycle it takes a little bit of time for your burners to heat up.
Once the air reaches a preset temperature the limit switch turns on the blower.
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Grasp the sides of the panel and lift.
Flip the circuit breaker switch that corresponds to the goodman furnace to the off position to disrupt the.
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Remove the furnace access panel to get to the internal components.
How to reset the limit switch on a goodman furnace step 1.
The limit switch also tells the blower assembly when to turn on and off.
The limit switch includes a sensor in the heat exchanger to determine when the air is warm enough to circulate.
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As a result your air handler needs to wait to turn on because otherwise it would be delivering cool or lukewarm air to your rooms.