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Whirlpool ATR1245RPP0 Limit Switch
The limit switch is a switch in the heat exchanger that makes the determination when the heated air is actually warm enough for the main blower to kick in and circulate the air. This is important because if the air never warms up then you will never get hot air through the ducts.
General indicators that your limit switch will eventually need to be replaced
- Your Whirlpool system will not even start or run longer than a minute
- The whole system is starting to runs spotty more than once
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