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Whirlpool ATR1243SPP0 Limit Switch
The limit switch contains a sensor in the heat exchanger that determines when the air is warm enough to activate the main blower. This is important 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.
What are the clues to watch out for to know my main limit switch is almost going bad?
- The heating and cooling system will not begin the ignition sequence or will not stay running like it should
- Your system starts to runs uneven more than once
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If you are going to be buying or ordering any Whirlpool ATR1243SPP0 replacement part, do your due diligence and double check the model number and also make a visual comparison in order to be sure the correct replacement limit switch is the one being purchased. HVAC pros may have higher labor rates than others so you may want to ask around to find a good deal if money is a concern.
Feel free to download your manual for help.
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