WD-12S
Rev. (202103)
Operating instructions
47
4.3.5
Operating problems
Error messages
During operation, various alarms or information messages can appear on the
panel’s display. There is a distinction between IF and Er alarms. IF alarms can
normally be dealt with by the operator. If there is an Er alarm, the service
personnel must be called. Some IF alarms that have been dealt with by the
operator a few times will eventually change to Er alarms, meaning that the service
personnel must be contacted.
Each alarm has a number: 01, 02, 03 etc. The top display shows either IF or Er.
The bottom display shows the alarm number.
CODE
CAUSE
ACTION
IF01 /
Er01
The time needed to fill the tank has been
exceeded.
The alarm can be reset by pressing 0/1 on the panel.
The level pipe is not in place.
Fit the level pipe.
The level pipe's rubber sleeve is not
sealing against the bottom plate.
Adjust the level pipe. Check that the rubber sleeve has
not been damaged. Replace the sleeve, if it is damaged.
The water stopcock is closed.
Open the stopcock.
Er02
It has taken too long for the machine to
heat up, compared with the previous
time.
The alarm can be reset by pressing 0/1 on the panel.
Contact service personnel if the alarm recurs.
IF03/
Er03
The hood's pressure switch has been
activated to prevent crushing injuries.
You can reset the alarm by pressing 0/1 or the button to
open/close the hood.
Er04
Faulty temperature sensor in booster
heater (B41).
Contact service personnel.
Er05
Faulty temperature sensor in washing
tank (B21).
Contact service personnel.
IF06 /
Er06
The booster heater is not cooled during
the final rinse phase.
The alarm can be reset by pressing 0/1 on the panel.
The water stopcock is closed.
Open the stopcock. Close the door.
IF09
Alarm for changing the water.
Change the water. The alarm can be reset by pressing 0/
1 on the panel. If the alarm is not set to stop the machine,
the washing programme can continue.
IF10
Alarm for weekly cleaning.
The machine must be cleaned more thoroughly than
during daily cleaning. The alarm can be reset by pressing
0/1 on the panel.
Er12
The break tank has not been filled with
water.
The alarm is reset automatically when the tank is full.
Er13
The level sensor in the break tank
indicates an incorrect signal.
The alarm can be reset by pressing 0/1 on the panel.
Contact service personnel.
Er16
The temperature in the booster heater is
too low.
The alarm can be reset by pressing 0/1 on the panel.
Contact service personnel.
Er23
The hood does not open when the
automatic hood opener is used.
The alarm can be reset by pressing 0/1 on the panel.
Contact service personnel if the fault recurs.
Er27
The machine has lost all its set values.
Contact service personnel.
