38
39
EN
EN
Error
Cause
Error recovery
Dispensing of hot water is not possible
On-off switch on the
rear for hot water (HOT)
is off
Switch on the on-off switch for
hot water (HOT) on the rear of the
dispenser
Problem with the boiler Contact a service technician
Cannot dispense CO
2
Not enough water in the
tank
Top up the water or refill the tank and
check the device's pipework.
Defective pump
Contact a service technician
CO
2
on/off switch
on the rear panel is
switched off
Switch the CO
2
on/off switch to on
Cold water not cold enough
Thermostat is not set
correctly
Check the thermostat and, if neces-
sary, reduce the temperature
Ambient temperature
>30 °C
Reduce ambient temperature or place
the unit in a cooler room
Unit is placed too close
to the wall
Check the free space behind the unit
(at least 150 mm). Increase the clear-
ance if necessary
Water contains too little CO
2
CO
2
gas cylinder is
empty
Replace the CO
2
gas cylinder
CO
2
tank must be
vented
Turn off the water and actuate the
CO
2
outlet until only gas escapes.
Then turn on the water again and
allow the CO
2
to refill
Insufficient CO
2
pres-
sure
Increase CO
2
pressure up to 4 bar
Temperature setting is
too high
Set the thermostat to a lower temper-
ature. The higher the water tempera-
ture, the less CO
2
can be absorbed
When the CO
2
button is pressed, only
CO
2
escapes
Pump does not react
Disconnect the device from the pow-
er supply for 30 seconds and recon-
nect and press the CO
2
key again
Not enough water
pressure
Check water pressure
Water leakage
Water pipes in the
device are defective
Close the water tap, disconnect the
device from the power supply, then
contact a service technician
UV LED flashes, an acoustic signal
sounds and water output is not possible
Wastewater tank is full
Empty the waste water tank. If
necessary, disconnect the unit from
the mains supply for 10 seconds and
reconnect it
Leakage sensor is
activated
Contact a service technician
UV LED indicator flashes on the control
panel, an acoustic alarm sounds
UV lamp is not con-
nected properly or is
defective
Disconnect the device from the
power supply and unplug the connec-
tion; plug it back in, then switch the
device on again. If the UV lamp does
not work, then disconnect the device
from the power supply again and
replace the UV lamp. It is essential to
observe the warnings, see Section
6.4.
The UV LED lights up continuously (> 10
min.), even if no water is drawn
UV board error
Contact a service technician
9. AQA DRINK PRO 20 HYGIENE CHECKLIST
Component
Type of
action
Frequency of action
To be performed by
daily
weekly
six-monthly
annually
External hous-
ing and front
panel
Cleaning
Customer/operating
company (remove lime
marks from the surface
of the device using a
descaling spray and
then clean and disin-
fect using a sanitary
spray)
Water outlet
parts
Disinfection
Customer/operating
company (clean and
disinfect using a sani-
tary spray)
Drip tray and
grid
Cleaning
Customer/operat-
ing company (under
running water with
standard mild cleaner)
Emptying
Customer/operating
company
Ventilation
slots
Cleaning
Technical staff of
the distributor or
authorised, qualified
technical staff
Water circuit
in the water
dispenser
Disinfection
Technical staff of
the distributor or
authorised, qualified
technical staff
Filter
Replacement
*
Technical staff of
the distributor or
authorised, qualified
technical staff
CO
2
safety
check
Check the gas
pressure reducer
and check the
entire device
for leaks
**
Technical staff of
the distributor or
authorised, qualified
technical staff (only by
competent person)
UV reactor/
quartz glass
Visual inspection
for contaminants
or cloudiness on
the quartz glass
Technical staff of
the distributor or
authorised, qualified
technical staff (only by
competent person)
* six-monthly or when capacity is used up
** or every 2 years
Summary of Contents for AQA drink Pro 20 HCA
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