Display/Error #20 - #35 - Ken DW 412 Instruction Manual

Trouble shooting/error codes

Display/error #20 - #35

#20 WATER PRESSURE TOO LOW
The water filling has lastet too long
according to the programmed time,
which corresponds to a water pres-
sure of 1-2 bar in the connection to
the machine. This pressure is too
low to ensure an acceptable rinse.
#25 MISSING WATER PRESSURE
The water filling has lastet too long
according to the programmed time,
which corresponds to a water pres-
sure of 0-1 bar in the connection to
the machine. The rinse system is
unable to function at this pressure.
#30 SLOW HEATING WASH TANK
The heating element in wash tank
has been coupled in for longer than
a normal period, without reaching
the correct wash temperature.
#31 SLOW HEATING RINSE TANK
The heating element in rinse tank
has been coupled in for longer than
a normal period, without reaching
the correct rinse temperature.
#35 NO HEATING WASH TANK
The heating element in wash tank
has been coupled, without reaching
the correct wash temperature.
KEN DW 412
Subject to alterations
Cause
1. Stand-pipe is not in proper
position; water is running out of
the tank.
2. Strainer in water softener is
choked up.
3. Strainer on the inlet of the
solenoid valve is clogged.
4. Too low pressure in installation.
1. Stop cock in installation closed.
2. Verify that no sequenses 1,2,3
and 4 at #20 are present.
3. Defective solenoid valve.
4. Missing electrical connection to
solenoid valve.
5. Missing signal from level sensor
in wash tank.
1. Defective heating element VL1.
1. Defective heating element VL2.
1. Automatic cut-out T1 disconnected.
(placed under the machine, right
side)
2. Defective heating element VL1.
3. Defective contactor C1.
4. Missing connection from output
Activate output and measure wire
to C1.
NB! Remedying an error that requires the use of tools to remove the
machine cover plates may only be carried out by specially trained,
technical staff.
Remedial action
Stand-pipe to be placed in the right
position.
To be cleaned.
To be cleaned.
To be repaired, a pressure increase
pump may be installed.
Open the stop cock.
See 1 - 2 - 3 - 4 at #20.
To be replaced.
Repair connection to solenoid valve.
Repair connection to level sensor.
Adjust level sensor if necessary.
To be replaced.
To be replaced.
Try max. once to reconnect.
(The cause of the cut-out must be
found)
To be replaced.
To be replaced.
Activate output and measure wire
connection.
Section/page:12.2
17/9/2013