WDT DUFTDOS-AK1, Operating Instructions Manual

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DUFTDOS-AK1 and AK2 dosing device
Index: 01 Date modified: 01/02/2023 OI No.: BA DW 039-01 DUFTDOS-AK1+2 NT35-R EN.docx Page 22 of 30
7 Maintenance, care, faults
7.1 Device maintenance
In order to ensure the proper function of the device, pay attention to the following points:
1.
Regular cleaning of the device
2. Stocking of the consumables
3. Renew the filter star every time the fragrance is changed, at least once a year.
Open/close the control housing
For opening and closing the control housing, see Chapter 4.3.1, page 13
.
7.2 Fault removal
Tip!
It is also possible that switches, the voltage supply or the push buttons are faulty and
thus do not transmit any electrical signals.
Fault indications
The following fault indications may be displayed. For the removal of fault indications, see the following
fault table. Once a fault indication occurs, the device is stopped.
ATTENTION!
If the compressor motor were to continue running when the inlet nozzle is frozen, the
fragrance container could burst and the fragrance concentrate could leak out.
Current flow too high; system shutdown. Short-circuit on cable or in heater.

Check/renew the cable and heater.
Electrical interruption in the cable or in the heater.

Check/renew the cable and
heater.
Fault table
Fault display/fault Possible cause Actions
The device cannot be
switched on

Fuse F2 defective

Mains switch defective

Power supply interrupted

Renew fuse F2

Check/renew mains switch

Check power supply
Device without function

Software does not react

Incorrect setting

Control board defective

Conduct a restart

Check/reset settings

Check/renew board
Compressor without
function

Compressor motor defective

Check/renew compressor motor
No fragrance genera-
tion

Compressor defective

Incorrect fragrance concen-
trate

Dosing line damaged, bent,
blocked

Check/renew compressor

Replace fragrance concentrate

Renew dosing line
No pressure build-up

Compressor defective

Check/renew compressor
Alarm
short-circuit
heater
Alarm
failure
heater