Dexter Laundry T900 Parts & Service Manual page 55

Common Troubleshooting Solutions
Symptom Probable Cause
Door will Door Rod
not open
Gear Motor
No hot Water Valve Coil
water in
detergent
Water Inlet
dispenser
Water
P-20 Wire Harness
Hot water Water Valve Coil
does not
enter tub in
Water Inlet
wash
Water
Blk or Wht wire at
main controller
Pressure Switch
No cold Water Valve Coil
water to tub
in wash
Water Inlet
Screens
Water
Blk or whit wire
at controller and
main relay PCB
Pressure Switch
Water Drain Valve (open)
comes in
but level
does not
rise
Blk or whit wire at
controller
Water does Water Valve Coil
not flush
softener
Water Inlet
compart-
Screens
ment.
Water
Suggested Remedy
Check to see that door rod from solenoid to lock ass'y is
long enough to allow lock ass'y to disengage. If not, adjust
rod.
Check the door lock motor. Make sure the motor is not stuck
or in a bind. If motor does not move freely, replace locking
motor.
Check coil continuity at terminals and replace if no continu-
ity. 120 V power only on for 20 second in wash bath.
Check water inlet screens for blockage and clean screens if
necessary.
Check to insure that water is turned on and operating.
Check black & white harness.
Check coil continuity at terminals and replace if no continu-
ity. Check for 120 V power from main relay PCB
Check water inlet screens for blockage and clean if neces-
sary screens
Check to insure that water is turned on and operating.
Check black or white wires at Molex plug on PCB at main
controller and at relay PCB.
Check pressure switch continuity between terminals . If no
continuity, check pressure switch hose for obstruction. If
hose okay, change pressure switch.
Check coil continuity at terminals and replace if no continu-
ity.
Check water inlet screens for blockage and clean if neces-
sary.
Check to insure that water is turned on and operating.
Check black or white wires at Molex plug on PCB at main
controller and at relay PCB.
Check pressure switch continuity between terminal contacts.
If no continuity, check pressure switch hose for obstruction.
If hose okay, change pressure switch.
Check these areas • Drain valve blockage • Drain valve mo-
tor and gear train. If power but drain valve does not close,
replace valve. • Power to the drain valve. If no power to
drain valve, check (brn/yel) circuit for power.
Check black and white wires at molex plug on main PCB
controller and at main relay PCB
Check coil continuity at terminals and replace if no continu-
ity.
Check water inlet screens for blockage and clean if neces-
sary.
Check to insure that water is turned on and operating.
55
Part # 8533-081-001 1/18