Bedpan / Urinal Bottle and Utensil / Bowl Washer Disinfector (WDS)
Operation, Maintenance and Installation Manual
Issue 16
Page
32
August 22
FAULT
CODE
STATE
DESCRIPTION
POSSIBLE CAUSES
401
Steam Heatup
Steam water level timeout
Water leakage, steam fill solenoid failed, steam
level sensor failed, blocked inlet hose
403
Steam Heatup
Steam water low level during heatup
Water leakage, steam fill solenoid failed, steam
level sensor failed, blocked inlet hose
404
Steam Heatup
Steam water temperature high
Faulty temperature sensor, faulty heater relay,
faulty contactors
405
Steam Heatup
Steam timeout
Faulty steam heater element, faulty steam
heater relay, heater circuit breaker tripped,
over temp switch tripped. Faulty temp probe,
faulty contactors. Panel lockout switches J8
open circuit, door interlock switch J11 J10,
leaking 4
–
way solenoid valve.
421
Steam Disinfect
Disinfect water low level
Water leakage, , steam level probe failed
422
Steam Disinfect
Disinfect water temperature high
Faulty temperature sensor, faulty heater relay,
Faulty contactors
423
Steam Disinfect
Disinfect timeout
Faulty steam heater element, faulty steam
heater relay, heater circuit breaker tripped,
over temp switch tripped. Faulty temp probe
chamber steam outlet, faulty contactors.
Blocked condenser coil. Blocked mesh on
steam outlet, panel lockout switches J8 open
circuit, door interlock switch J11 J10
424
Steam Disinfect
Temp Probe Differential
Differential between control and validation
temp probes has exceeded tolerance.
801
Purge flush
Low water level during wash
Low pump water flow, blocked spray nozzles,
faulty solenoid, panel lockout switches J8 open
circuit. Faulty level probe. Incorrect spray
nozzles fitted
802
Purge flush
Door open
Door opened when attempting pure rest, faulty
door interlock switch J11 J10
803
Purge flush
Pump run without solenoid
Check cycle times parameters, faulty solenoids
804
Purge flush
Timeout before level reached
Low pump water flow, blocked spray nozzles,
faulty solenoid, panel lockout switches J8 open
circuit. Faulty level probe. Door interlock
switch J11 J10
805
Purge Cold Fill
Water level sensor fail
Dirty conductivity sensor probe, faulty
connections, faulty conductivity module
806
Purge Cold Fill
Water fill timeout
Water level sensor failed or water supply low
flow, water fill solenoid failed, water supply off
