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Carrier 38YCS048 Furnace Door Switch
A furnace door switch is a safety feature that prevents initial fan and ignitor from starting so as to stop a potential explosion. You must have the device switched out ASAP if it is damaged so as to prevent something bad happening.
What are some hints that my safety switch on the furnace door needs replacing?
- The HVAC system will not even begin to start whether the door is off or on
- The switch has been breaking apart
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If you are going to be buying or purchasing, do your due diligence and cross-check the correct model and also make a visual inspection in order to be sure the right furnace door switch is being ordered. There is no rule that says you have to install it yourself. Hire someone with experience in your community to replace the part.
Feel free to download your manual for help.
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