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Samsung MH035FNCA Limit Switch
A normal limit switch has a sensor in the heat exchanger that decides when the heated air is warmed to a point to activate the main blower. One big reason why limit switches are designed that way is because if the air is not warm enough then you will never get hot air through the ducts.
What to see if the limit switch most likely is crapping out?
- System refuses to start or run longer than a minute
- Your system is beginning to runs uneven more than once
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Before buying or ordering a new Samsung MH035FNCA replacement part do your best and cross-check the model number as well as make a visual inspection so that you are positive that the correct replacement limit switch is the one being purchased. Take safety precautions when replacing parts in an HVAC environment. If there are any doubts about what you are doing then call a pro. Stay safe.
Feel free to download your manual for help.
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