9
FAULTS AND THEIR REMEDY
Remedy of faults on
the regulation and
hydraulics must be carried out by an
authorized company.
Use only original parts for repairs.
fault:
description:
cause:
measure:
The boiler does not
react after switching on
the main switch
The display does not
respond, the other
components do not
working
- boiler is disconnected from
electricity
- the fuses on the bottom
panel are switched off
- possible disappearance of the
control phase
- fault of the main switch ON / OFF
- Ensure power supply
voltage
- switch on the fuses
- check on the fuses if there are
all three phases at the exit
- Replace the defective part
The boiler does not heat
or does not heat
enough / the heating
pump works
Everything on the
display is in the
recommended limits,
but the boiler does not
deliver hot water
- Lack of 1 or 2 phases
- The power of the boiler is too low
- Fault in one of the relays
- Fault in one of the heaters
- Check if all three phases come into
the boiler
- Check the set power of the boiler.
- Replace the defective part
- Replace the defective part
The boiler heats but it is
very noisy
Increased noise level
during operation
- Air in the system
- Too low water flow
- Possible occurrence of
limescale on the heater
- Check if the air is
discharged from the
system and discharge it
- Check the valves below the
boiler and open them.
- Clean the filter in front of the boiler
- Remove heaters and clean
them (this is not considered as
a complaint within the
warranty period)
The boiler is quickly
switching off
It reaches the desired
temperature too quickly
and stops working
- Closed valves under the boiler
-
The pump’s fuse has stopped
working
- Stuck pump
- Defective pump
- Open the valves
- Replace the defective part
- Start the rotor of the pump
- Replace the defective part
Large oscillations of the
operating pressure
Too fast and too large
changes in the
operating pressure
- One valve is closed
- Pressure in the expansion
container is inadequate
- Defective container
- Open the valve
- Check the pressure in the
expansion container and pump
the container to an adequate
value if it is necessary
- Replace the defective part
Faults and their remedy
