– 19 –
Does Continuity exist between:
Main Control Board J3-1 to Damper Blue/Yellow wire?
Main Control Board J3-2 to Damper White/Brown wire?
Main Control Board J3-3 to Damper Red/Black wire?
Main Control Board J3-4 to Damper Yellow wire?
Replace the damper.
Does the damper work?
Yes
No
Repair faulty
wiring.
Replace the main control board.
No
Damper Does Not Work
Does 13 ohms of resistance
exist betweeen the dispenser
board J1-1 and J1-2?
Replace the duct solenoid.
Does the duct door operate?
Yes
No
Repair faulty
wiring.
Replace the main
control board.
No
Duct Door Does Not Open
Summary of Contents for GSS20 Series
Page 26: ... 26 Wiring Diagram ...
Page 27: ... 27 Illustrated Parts Catalog ...
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