Service manual

22 M411433
Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
20. IGNITER DOES NOT GLOW
(White Rodgers Glow-Bar System)
21. IGNITER GLOWS CONSTANTLY
22. IGNITER GLOWS, CYCLES OFF BUT BURNER DOES NOT IGNITE
ARE 80 - 120 VOLTS
PRESENT BETWEEN
BLACK WIRE AND
GROUND ON MAIN
THERMOSTAT?
YES
NO
CHECK
HEAT CIRCUIT
ARE 80 - 120 VOLTS
PRESENT BETWEEN
WIRES OF IGNITER
BRACKET?
ARE 80 - 120 VOLTS
PRESENT BETWEEN
EACH OF THE PURPLE
WIRES OF SENSOR AND
GROUND?
NO
YES
REPLACE
IGNITER
NO
REPLACE
DIODE LOGIC BOARD
REPLACE
SENSOR
ARE 80 - 120 VOLTS
PRESENT ACROSS
THE RED AND WHITE
WIRES OF THE
REDUNDANT COIL?
NO
CAN YOU
HEAR THE
REDUNDANT
COIL
OPEN?
NO
REPLACE
COMPLETE
GAS VALVE
NO
ARE 40 - 60 VOLTS
PRESENT ACROSS
THE PURPLE WIRES
TO THE
MAIN COIL?
IS GAP BETWEEN
IGNITER
AND BURNER
1/8 IN. TO 1/4 IN.?
NO
ADJUST
IGNITER GAP TO
1/8 IN. TO 1/4 IN.
YES YES YES
REPLACE DIODE
LOGIC BOARD
REPLACE DIODE
LOGIC BOARD
CAN YOU
HEAR THE
MAIN COIL
CLICK
OPEN?
NO
REPLACE
MAIN COIL
YES