Asko WM70, Service Manual

Page: 39 / 60

Service manual WM70
39
Fault indications WM70.2
Error messages Cause Action
Over flow fault Too much water in the machine Service action:
Check the machine’s level system, inlet valve and drain pump.
Make sure that there is no leaks.
The drain pump is on, without any
water in the machine. Service action:
The overflow protection at the bottom of the machine is
activated (not all models). Make sure that there is no leaks
(water on the machines base)
Water outlet fault
1. The drain pump has been
activated more than 3 minutes.
There is still water in the machine.
2. The wash cycle is interrupted
and the program is cleared Customer information:
1. Check that no objects are stuck in the drainage hose
outlet.
2. Check that the drain pump is not blocked by foreign
objects.
3. Check that there are no kinks in the drainage hose.
Service action:
1. If the pump only runs for a short while (approximately 20
seconds), this indicates a fault in the level system. Check the
level sensor and hoses.
2. Check wiring and voltage to the pump. If necessary, replace
the pump and/or control
3. After implementing corrective action, run the Drain
program or press the Key button (door open) to empty the
machine.
Water inlet fault If the correct water level is not
reached within 5 minutes, the
wash cycle is interrupted. Customer information:
1. Check that the tap on the water pipe is open.
Service action:
1. Check that the filter in the machine’s water intake is not
blocked.
2. Check the inlet valve. If necessary, replace the valve.
3. Check voltage to the inlet valve. If there is no voltage, this
could be due to a fault in the level system, wiring or control
unit.
Security fault
The door is open. Close the door
Thermistor fault
1. The circuit for the thermistor
is open.
2. The thermistor is faulty
3. The measurment value for the
thermistor is <300
Ω
(>120 °C)
Service action:
Check the thermistors function. If needed, replace it.
Temperature fault
The temperature is raised < 5
°C/41
°F
within 10 minutes. The
wash cycle continues to next step
Service action:
Check the heater, cables, thermistor and level system.
Engine fault No signal from Tacho or MCU. Service action:
Check the output from the MCU and the wiring between the
motor and the MCU
Pressour sensor fault Iindicated if the level drops to
0 within 30 seconds of the first
rinsing. Service action:
Check the leakage
Unbalance detection After 10 failed attempets to
spin the load the machine has
stoped to spin beacuse of to high
umbalance. nformation to customer:
- Small loads with heavy items can cause this problem when
these articles are difficult to redistribute.
After carrying out corrective actions as above, reset the fault indications by pressing the DOOR
OPERING BUTTON at the same time as the main power switch.