NELSON AD60 Passthrough Dishwasher
8 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:
Tank temperature probe
malfunction
Er 04
Tank temperature probe disconnected or faulty.
- The tank wasn’t filled in the expected time: check the water
supply tap, the dynamic supply pressure, cleanliness of the inlet
water filter, cleanliness of the rinse nozzles, any damage of the
water charging hose. If the problem persists during filling:
- Work level tank pressure switch damaged (it always detects
“empty”: check if the tank safety pressure switch starts
operating).
Er 05 Tank water filling malfunction
- Leakage from the tube connected to the air trap; if the problem
is not solved, it occurs during the work program.
- vent valve of the drain pipe obstructed with dirt: with
siphonage, the tank gets completely empty at the end of a
washing program.
Check:
- filter cleanliness; obstructions, bending and narrowing of the
drain pipe.
Water pump-out malfunction
Er 06
- possible obstructions of the drain pump (blocked with a foreign
body).
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 –
contactor failure - open on boiler safety thermostat side. - boiler
Boiler does not heat up as
expected.
Er 23
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.
Boiler temperature probe
malfunction
Er 24
Boiler temperature probe disconnected or faulty.
The boiler wasn’t filled in the expected time: check the water
supply tap, the dynamic supply pressure, cleanliness of the inlet
water filter, any damage of the water charging hose, or check the
following in this order:
Boiler water filling
Er 25
malfunction
- faulty boiler pressure switch (it always detects “empty”),
- leakage or unbinding of the tube (water runs inside the tube)
22
| General | Details |
|---|---|
| Name | NELSON AD60 Passthrough Dishwasher |
| Make | NELSON |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.52 MB |
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