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WDS
Operation, Maintenance and Installation Manual
ISSUE 5
Page
28
15/03/2016
5.4
FAULT CODES
The device is controlled by a sophisticated micro-processor. The processor has fault detection capability and indicates
faults by code on the LCD display as well as an audible buzzer.
Software V3.03
FAULT
CODE
STATE
DESCRIPTION
POSSIBLE CAUSES
901
System
Blockage
P or S trap blockage to drain.
902
System
Door Open during Wash Cycle,
Faulty door microswitch J11,J10, Actuator,
Transformer fuse
903
System
Internal System Communications
Error
Display Unplugged, LINK J34 removed,
Loose processor pcb
904
System
Power interrupted during cycle
Emergency Cycle Stop button pressed,
Mains power supply interrupted, 10A Circuit
breaker tripped
Need Service tech to perform Purge Reset
procedure
905
System
Power button cycle aborted
Note – wash cycle is started
Need Service tech to perform Purge Reset
procedure
101
Power On
Water Fill Timeout - Water tank and
Steam generator
Water Level Sensor Failed or Water supply
low flow or turned off, Water Fill solenoids
failed
102
Power On
Steam Fill Timeout
Steam fill solenoid failed, Steam Level
Sensor Failed, Blocked inlet hose
120
Power On
Blockage at Power On
P or S trap blockage to drain. Faulty
sensor.
141
Open Door
Door Overcurrent Trip
Door is obstructed, Actuator Motor faulty,
Door hinges seized
143
Open Door
Door Timeout
Actuator Motor Faulty, Blown transformer
fuse, Door hinges seized
149
Open Door
Door interlock switches fault
Door Interlock Switch J11 stuck on when
door opens.
181
Close Door
Door Overcurrent Trip
Door is obstructed, Actuator Motor faulty,
Door hinges seized
183
Close Door
Door Timeout
Actuator Motor Faulty, Blown transformer
fuse, Door hinges seized
220
Cold Flush Fill
Water Level Sensor Fail
Dirty Conductivity Sensor Probe, faulty
connections, faulty conductivity module,
221
Cold Flush Fill
Water Fill Timeout
Water Level Sensor Failed or Water supply
low flow, Water Fill solenoid failed, water
supply off.
241
Cold Flush Run
Low Water Level during wash
Check cycle time. Pump rate to high, Water
Leakage
242
Cold Flush Run
Door Open
Door opened during wash cycle, faulty door
interlock switch J11 J10
243
Cold Flush Run
Pump run without solenoid
Check Cycle Times parameters, Faulty
solenoids
244
Cold Flush Run
Timeout before Level reached
Low pump water flow, blocked rotary
nozzles, Faulty solenoid, Panel lockout
switches J8 open circuit. Faulty level probe.
Door interlock switch J11 J10
260
Cold Wash Fill
Water Level Sensor Fail
Dirty Conductivity Sensor Probe, faulty
connections, faulty conductivity module,
261
Cold Wash Fill
Water Fill Timeout
Water Level Sensor Failed or Water supply
low flow, Water Fill solenoid failed, water
supply off.
281
Cold Wash Run
Low Water Level during wash
Low pump water flow, blocked spray
nozzles, Faulty solenoid, Panel lockout
switches J8 open circuit. Faulty level probe.