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GL
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17
INSTaLLaTION
appliance shutdown
Limiting the flow rate
Factory setting: Maximum flow rate
26
�0
2�
05
�0
07
9�
f
f
Using the adjusting screw, set the maximum required flow
rate:
- Lowest flow rate = wind the screw in as far as it will go.
- Highest flow rate = wind the screw out as far as it will go.
f
f
Fit the appliance cover.
12. Appliance shutdown
f
f
Isolate the appliance from the power supply by means of the
fuse/MCB in your fuse box or by pulling the power cable plug
from the socket.
f
f
Drain the appliance (see chapter "Maintenance").
13. Troubleshooting
Problem
Cause
remedy
The appliance will not
start despite the DHW
valve being fully open.
The aerator in the tap is
scaled up or dirty.
Clean and/or descale the
aerator or replace the
special aerator.
The flow rate is set too
low.
Increase the flow rate.
The sieve in the cold
water line is blocked.
Clean the sieve after
shutting off the cold
water inlet line.
The heating system is
faulty.
Check the resistance of
the heating system and
replace the appliance if
required.
The safety pressure limit-
er has responded.
Remedy the cause of
the fault. Isolate the ap-
pliance from the power
supply and depressurise
the water line. Activate
the safety pressure
limiter.
The required tempera-
ture is not being reached.
The appliance has
reached its output limit.
Reduce the flow rate.