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Carrier 38H Limit Switch
Limit switches were created because if the air never warms up the you will lose all the heat as the air flows through the ducts. The limit switch is a switch located in the furnace that determines when the heated air is actually warm enough so that it may be pushed through the ducts and out the vents.
Major signs critical limit switch needs replacing
- The system is beginning to behave differently repeatedly
- The heating and cooling system is unable to start or run well longer than 30 seconds
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If you are going to be buying or ordering, do your due diligence and double check the correct model and also make a visual inspection in order to be sure the correct replacement limit switch is being ordered. There is no need to replace the part all by yourself. Find a professional in your community to do the job for you.
Feel free to download your manual for help.
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