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Question About Coleman Furnace DGAA056BDTA
combustion air switch...

IF I AM GETTING A CODE...COMBUSTION AIR SWITCH STUCK CLOSED...CAN I FIX IT OR DOES THE PART NEED TO BE REPLACED AND WHERE IS IT?

Asked by LESLIE on 10/21/2010 1  Answer

PrinceofPalmyra posted an answer 14 years, 1 month ago

5 If you don't know what a combustion air switch is, you should not be repairing your furnace. Moisture that is supposed to drain through all of those black hoses can get clogged. This can cause corrosion on the connections inside the switch. Try vacuuming out the hoses. If the switch still does not work, it will need to be replaced. It looks like a 2"-3" disc with several thin hoses connected to it along with 2 wires. Typically, it is mounted with 2 screws on a curved bracket.
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