11
Service Manual - Dishwasher Models DDW24S, RDW24I and RDW24S
Troubleshooting
Fault Codes
Audible signal sounds when a fault is indicated on the display.
Display Cause
Action
The door is open
Close the door
F:10
Overfilling: Too much water in the machine
(pressure sensor) or float activated. If the
water has not been emptied within 60 sec-
onds, the cycle stops (drain
pump activated).
Check drain pump (blocked hose), flow meter,
inlet valve, leaks and cables.
F:11
Water outlet fault: Water not drained after
120 seconds draining. Cycle stops.
Check drain pump, hoses, drain hose fittings, control unit and
cables. Also check whether filter is blocked.
F:12
Water inlet fault < 80 pulses within 60
seconds or correct number of pulses not
achieved within 255 seconds. Program
stops.
Check water inlet, flow meter, inlet valve and cables.
F:40
Inlet valve leakage: Water intake detected
when inlet valve deactivated in cycle
sequence or standby. In this case the
machine attempts to close the valve by
opening it for 2 seconds and then closing it
again. If water flow through the valve is still
detected any current program is stopped
(drain pump activated).
Check leak through inlet valve and flow meter.
F:41
Temp stop fault: Temperature increase less
than 5°C (41°F) in ten minutes. Cycle con-
tinues with the process. Only indicated in
service menu.
Check element, thermistor, water level, circulation
pump, control unit and cables.
F:42
Thermistor fault: Communication between
the thermistor and control unit has stopped
or the thermistor is reporting temperatures
greater than 80°C (176°F). Cycle continues
with the process. Only indicated in service
menu.
Check thermistor, plugs, wire harness, and control unit.
F:43
Pressure sensor fault Output signal > 4.8
V. The cycle continues. Only indicated in
service menu.
Check pressure sensor, control unit and cables.
F:44
Turbidity sensor fault: Only indicated in
service menu. The machine assumes high
turbidity in case of “uncertainty” in the auto
program.
Check water quality, filters, turbidity sensor and
drain system.
F:45
Spray arm diverter fault: Position switch
always closed or open. The cycle contin-
ues. Only indicated in service menu.
Check spray arm diverter (functioning gearbox,
switches and cables).