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Friedrich MR12Y3H Limit Switch
A normal limit switch is a type of sensor switch located in the furnace that can determine if and when the air is actually warm enough that it can be circulated throughout the house. One big reason why limit switches are designed that way is because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Signals of a worsening critical limit switch
- The Friedrich system is beginning to runs spotty repeatedly
- Your Friedrich system refuses to start nor will it stay running longer that five minutes
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If you decide on picking up or ordering, do your due diligence and double check the correct model as well as make a visual inspection so that you are positive that the right limit switch is the one being purchased. The installing of the limit switch is not difficult assuming you have the time and have the tools to get it done.
Feel free to download your manual for help.
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