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Coleman DGAA077BDTA Limit Switch
The limit switch has a sensor in the heating area that determines when the air is warm enough to activate the main blower. Limit switches were created because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Major warnings of a failing main limit switch
- System refuses to kick in or run well as it should
- The system is beginning to ramp up but then stops occasionally
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If you decide on picking up or ordering a replacement limit switch for your Coleman DGAA077BDTA, do your due diligence and double check the correct model as well as make a visual comparison in order to be sure the right limit switch is the one being purchased. HVAC pros can be expensive so it may be beneficial to look around your area to acquire the best rate if money is a concern.
Feel free to download your manual for help.
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