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Samsung MH050FXCA2A Limit Switch
The main reason limit switches are made is due to the fact that if the air inside the furnace is too cool then the house will never get warm enough. The limit switch has a sensor in the heating area that senses, or governs, when the heated air is warmed to a point for the main blower to kick in and circulate the air.
Indications of an ineffective main limit switch
- The whole system begins to become unpredictable on a regular basis
- The heating and cooling system refuses to start or continue to run for any length of time
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