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5. Sail Switches (for Gas Dryers Only)
The sail switches are located in the front and back of the burner boxes. A sail switch consists of a round
damper plate on a lever arm, which is in contact with an electric switch. When the air blower comes on, it
draws air through the gas burners. This creates a negative pressure inside the burner boxes. This negative
pressure pulls in the sail switches. If the sail switches DO NOT pull in, this will prevent the heat circuit
from energizing and the computer will display a sail switch fault.
NOTE: An overly long or blocked exhaust duct, lack of make-up air, or clogged lint screen will
prevent the sail switches from pulling in.
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