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Friedrich MR12C1H Limit Switch
The limit switch is a type of sensor switch located in the furnace that can determine when the heated air is warm enough for the main blower to kick in and circulate the air. Limit switches exist because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
What are some hints that my limit type switch really is about to stop working?
- Your system is starting to erratically occasionally
- The HVAC system will not initiate nor will it stay running longer that five minutes
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If you decide on picking up or purchasing any Friedrich MR12C1H part do your best and cross-check the correct model as well as make a visual inspection in order to be sure the correct replacement limit switch is being ordered. The installing of the limit switch is a piece of cake if you have the time and have the tools to do it right.
Feel free to download your manual for help.
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