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6
TROUBLESHOOTING
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors
can cause improper and dangerous operation. Verify proper operation after servicing.
ATTENTION: Lors des opérations d'entretien des commandes, étiqueter tous les fils avant
de les déconnecter. Toute erreur de câblage peut être une source de danger et de panne.
If any of the following symptoms occur on this washer, check the suggested remedies
listed below. If all probable causes have been eliminated and the symptom still exists,
contact your local Dexter agent for further troubleshooting assistance. See contact
information at the end of this manual. Parts & Service Manuals from Dexter are also
available for further troubleshooting assistance.
Symptom
Machine does
not start
Control breaker or Fuse
Control Transformer
Check PCB board
Check wiring between PCB
Check Relay PCB
Check Door Locking Motor
Machine will
not accept
and count
coins
Door Closed Safety Switch
Door Handle Closed Switch
Control Breaker or fuse
Door does not
Check display for fault
lock
Door locking motor
8514-296-001 REV K page 87
Probable Cause
Check these areas: Circuit breakers, Voltage, Power leads, Power
Power supply
connections. Is front display LED showing a dollar amount?
Check for continuity through door switch when door is closed. If no
Door Switch
continuity, adjust or replace door switch.
60 Hz: Check 1.5 amp (T-950, T-1200 and T-1450 use 2.5amp)
breaker or fuse (50 Hz: 7 amp) for continuity. If no continuity,
replace breaker or fuse.
Check voltage output from control transformer for 120VAC (60 Hz)
or 24VAC (50 Hz). If voltage is incorrect, replace transformer.
Check coin acceptor switch for any type of blockage or damage.
Coin Acceptor
Clean, adjust or replace the acceptor.
Check all wire connections for loose contacts.
Check data cable. This is the cable with the phone type connectors
on the main PCB control and the VFD. With the power removed
unplug and check for damage, replug and retry washer.
Check all wire connections for sure contact.
Check that 120 VAC (60 Hz) or 24 VAC (50 Hz) power is at motor
after start button is pushed.
Check coin acceptor switch for any type of blockage or damage.
Coin Acceptor
Clean, adjust or replace the acceptor.
Check these areas: Circuit breakers, Voltage, Power leads, Power
Power Supply
connection
Check door closed switch at door hinge for proper operation.
Check single door closed switch at left side of door handle to close
when handle is vertical.
Check breaker or fuse for continuity. If no continuity, replace
breaker or fuse. For 60 Hz the T-300 through T-900 use the 1.5
amp fuse. The T-950, T-1200, T-1450 and T-1800 use a 2.5 amp
fuse. (For 50 Hz, all use 7 amp)
Main PCB
Replace
Does "DOOR LOCK ERROR" show on the front of display? If yes
code
follow tests described in fault code section.
Check to ensure that motor is receiving 120 VAC (60 Hz) or 24 VAC
(50 Hz) from main relay PCB. If it is, replace motor.
Suggested Remedy
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