THERMEx ID 100 V (smart), User Manual

Page: 11 / 130

9
12. POSSIBLE FAULTS AND REMEDIES.
Malfunction Possible cause How to fix
Hot water pressure
from EWH decreased.
Cold water pressure
keeps at the level.
Clogged inlet
safety valve
Remove the valve and clean
it in water
Heating time
increased
THE is covered
with a layer of sludge
Remove the flange and
clean the THE
Supply voltage decreased Contact power main operation ser-
vice
Frequent tripping
of thermal switch
The set temperature
is close to the limit
Set lower value of water
heating temperature
Thermostat tube is cov-
ered with sludge
Take out the EWH the re-
movable flange and gently clean
the tube from scale
EWH operates but is not
heating water
Valve (Fig. 1, p.8)
is not closed or out of or-
der
Close or replace the valve (Fig. 1,
p. 8)
Powered EWH does not
heat water. No backlights
of indicator lamps.
1) no voltage in electric
network;
2) damaged power cord.
3) Thermal switch actu-
ated and not switched
on
1) Check voltage at the electrical
outlet;
2) Contact a qualified service cen-
ter.
3) Disconnect from the power
supply, remove EWH protective
cover, press the button on ther-
mal switch until you hear a click
(fig. 2) install the cover and turn
on the power
These faults are not defects of EWH and shall be fixed by the consumer or by a
specialized organization at his own expense.
In case of failure to fix problems using the above recommendations or in case of
others problems revealing you should contact the authorized service center listed in the
operation manual.
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EN