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Carrier 38EYA060 Limit Switch
The limit switch is a switch in the heat exchanger that makes the determination when the heated air is warm enough to activate the main blower. The main reason limit switches are made is because if the warmed air is too cool the you will lose all the heat as the air flows through the ducts.
Signs limit switch should be replaced
- The whole system starts to behave erratically time after time
- Your Carrier system will not begin the ignition sequence nor will it stay running even though the desired temperature has not been attained
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