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DeLonghi PAC-W130E Limit Switch
Limit switches were created due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts. The limit switch contains a sensor located in the furnace that can determine when the air is actually warm enough so that it may be pushed through the ducts and out the vents.
Important clues of a weakening critical limit switch
- The HVAC system is unable to start nor will it stay running even though the desired temperature has not been attained
- The system starts to become unpredictable often
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