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Friedrich VHA18K Limit Switch
A normal limit switch is a switch located in the furnace that determines when the air is warm enough that it can be circulated throughout the house. Limit switches exist because if the air never warms up then you will never get hot air through the ducts.
Major warnings of a deteriorating critical limit switch
- Your system is beginning to become unpredictable on a regular basis
- The heating and cooling system will not start or run well even though the desired temperature has not been attained
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If you are going to be buying or ordering a new Friedrich VHA18K replacement part, do your due diligence and make sure of the correct model and also make a visual inspection so that you are positive that the correct replacement limit switch is the one being purchased. There is no need to install it yourself. Look for a professional in your town or city to pay to install it for you.
Feel free to download your manual for help.
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