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International Comfort Products C8MPV100J20B1 Furnace Door Switch
This switch inhibits the vent fan and ignitor from starting in order to prevent injury and fire. It is important to get the part traded for new one immediately if you can, if it is causing you problems.
Signs your safety switch on the furnace door will eventually need to be replaced
- The furnace door switch appears to be broken
- The whole system will not run whether the door is off or on
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