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Haier HPN14XHM Limit Switch
Limit switches exist due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts. The limit switch is a type of sensor switch in the air handler that can determine when the air is warmed to a point to activate the main blower.
Simple warnings that your limit type switch really has a need to be replaced?
- Your Haier system refuses to kick in nor will it stay running longer than 30 seconds
- The system is starting to shut down unexpectedly on a regular basis
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