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Desa REM155B Limit Switch
A normal limit switch has a sensor in the air handler that makes the determination if and when the air is actually warm enough so that it may be pushed through the ducts and out the vents. The reason limit switches exist is because if the warmed air is too cool then the house will never get warm enough.
Symptoms limit switch will eventually need to be replaced
- System will not even start or run well longer than 30 seconds
- The Desa system is starting to run inconsistently on a regular basis
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Before you decide on buying or purchasing, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the correct replacement limit switch is the one being purchased. HVAC pros can be expensive so you may want to keep a lookout locally to acquire the best rate if you want to pay bottom dollar.
Feel free to download your manual for help.
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