CWC 611
12
7 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE TECHNICIAN)
The dishwasher is able to identify a number of malfunctions and show them on the display. If the problem persists after the
dishwasher has been switched off and back on, proceed as described below:
Er 04
Tank temperature probe
malfunction
Tank temperature probe disconnected or not working.
Er 05
Tank water filling malfunction
The tank does not fill within the allowed time: check water intake tap, dynamic
pressure in intake system, cleaning of water intake filter, possible damage to
water intake hose or cleaning of rinsing nozzles.
If the problem persists during
“FILL”
: - tank level switch failure. (Always on
empty: check whether tank safety pressure switch is tripped). - Leak from pipe
connected to air trap: if problem persists, check during working programme. -
Drain line vent valve fouled: tank empties completely at end of a wash
programme due to siphon effect.
Er 06
Water pump-out malfunction
Inspect the filters dirt that the drain hose is not blocked, bent or crushed.
Check that the drain pump is not blocked by dirt by removing the insert on the
sump (from inside the tank).
If the problem persist:
With the tank empty: tank pressure switch defect (the contact is locked on
full)
With tank full: drain pump has failed.
Er 23
Boiler does not heat up as expected.
The problem might occur because water is continually entering the tank (the
causes are as for
“Er 05”
– see above) If the boiler heating element is
damaged, this might be due to operation with no water in the boiler - the
pressure switch is indicating full even with the boiler empty: - damaged boiler
heating element – conta ctor failure - open on boiler safety thermostat side. -
boiler temperature probe faulty or incorrectly positioned - motherboard relay
failure, Important: If the boiler heating element is damaged, this might be due
to operation with no water in the boiler, pressure switch continues to give full
reading even with boiler empty: check boiler air trap and/or relative pressure
switch and replace if necessary.
Er 24
Boiler temperature probe
malfunction
Boiler temperature probe disconnected or not working
Er 25
Boiler water filling malfunction
The boiler does not fill within the allowed time: check water intake tap,
dynamic pressure in intake system, cleaning of water intake filter, possible
damage to water intake hose or check, in this order:
- boiler pressure switch has failed (continuous empty reading). - pipe
leaking/disconnected (water entering pipe) – item
“rp”
in service menu not set
correctly
Er 26
Boiler emptying malfunction
- check that rinsing spray arm nozzles are clean
- boiler pressure switch has failed (continuous full reading)
- pipe leaking/disconnected (water entering pipe)
- rinsing pump not working
Er 27
Boiler emptying malfunction – with
tank full
Or boiler full signal on models
without rinsing pump
Boiler pressure switch has failed (continuous full reading) if appears when
rinsing pump is not present; presence of boiler pressure switch: check setting
of item
“rp”
in service menu
“rp”
=on for models with rinsing pump
“rp”
=of for models without rinsing pump
