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Haier HPN14XCM Limit Switch
One big reason why limit switches are designed that way is because if the warmed air is too cool then you will never get hot air through the ducts. The limit switch contains a sensor in the heating area that makes the determination if and when the air is actually warm enough for the blower to be activated.
Some warnings limit switch is in dire straights
- The system is beginning to shut down unexpectedly frequently
- System refuses to kick in or continue to run longer than a minute
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