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INSTALLATION
Troubleshooting
9.
Troubleshooting
Problem
Cause
The appliance does not
The strainer in the cold
supply hot water.
water inlet pipe at the
angle valve is blocked.
The LED illuminates, but
The temperature con-
the appliance does not
troller is faulty.
heat.
The temperature limiter
has responded.
Only a small amount of
The special aerator in
water can be drawn off
the kitchen tap is scaled
from the kitchen tap.
up.
The appliance does not
Boil-dry detected in the
heat up, LED flashes
appliance.
rapidly.
The LED flashes when
The appliance was
the heat-up process has
commissioned without
been completed:
calibration.
Flashing 3 x�5 seconds
OFF�flashing 3 x�5 sec-
onds OFF.
During heat-up, steam
The heating element is
is expelled from the tap,
scaled up.
the water heats up.
The temperature limiter
The hot water outlet of
was activated during
the tap is blocked.
boiling point capture.
The indicator (LED)
flashes rapidly: 2 x per
second.
9.1
Troubleshooting in the case of a blocked tap
Note
A blockage in the tap has caused the high limit safety
cut-out in the appliance to trip.
CAUTION Scalding
"Rapid flashing" indicates that an impermissible high
pressure has built inside the appliance.
Initially relieve the excess pressure, before undertaking
any of the following steps (see the following chapter).
Never pull off the hose ferrule or the plastic hose, as
escaping steam and hot water may lead to scalding.
18
| SNU HOT | HOT 3in1
9.1.1 Relieving excess pressure inside the appliance
f Pull the mains plug out of the socket.
Remedy
f Close the angle valves.
Clean or replace the
strainers; see chapter
"Appliance description /
Accessories".
Carry out a RESET and
re-calibrate the appliance;
see chapter "Commission-
ing".
Remedy the fault and
replace the temperature
controller and temper-
ature limiter assembly
(safety fuses).
Descale or replace the
special aerator; see chap-
ter "Appliance description
f Undo the fitting at the hot water outlet on the appliance
/ Accessories".
Allow the appliance to cool
down to < 40 °C. Begin
again with the initial com-
missioning.
f Undo the hot water outlet completely; for this simply turn the
Calibrate the appliance;
see chapter "Commission-
ing".
9.1.2 Removing blockages
f Remove the blockage from the tap.
Carry out a RESET and
f Check the tap for free flow-through.
re-calibrate the appliance;
see chapter "Commission-
f Fit the hot water outlet.
ing".
f Open the angle valves.
For troubleshooting, see
f Let the appliance cool down to 40 °C by drawing hot water,
the following chapter.
f Insert the power cable plug into a suitable socket or set the
f Reset the high limit safety cut-out by consecutively turning
f Recalibrate the maximum temperature capture; see chapter
10. Maintenance
f Dismantle the appliance for maintenance work.
f
f
22
f
(22 mm spanner) until steam escapes at the fitting and the
pressure inside the appliance is reduced (no more steam
escaping).
f
22 mm connector on the appliance.
f
f
f
f
f
which causes cold water to run into the appliance.
f
fuse/MCB.
f
the temperature selector to the following positions: 70 °C �
OFF � 70 °C.
f
"Commissioning / Initial commissioning".
WARNING Electrocution
Before any work on the appliance, disconnect the appli-
ance from the power supply.
f
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