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International Comfort Products MB20N2600A2 Furnace Door Switch
A furnace door switch is a switch that prevents initial fan and gas ignition from activating so as to avoid injuries. Do not waste time and have it exchanged for a new one immediately if you can, if it is defective in some way or another.
What to see if the safety switch on the furnace door is almost going bad?
- The switch appears to be eroded
- The HVAC system will not start whether the door is off or on
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