Loading ...
Loading ...
Loading ...
- 24 -
Heating element or its wiring partly
out of order
Check the resistance of the plug on the
connector on the plug wiring and the
condition of the wiring.
Cold water returns into the hot water
circuit.
Close the cold water supply using the
isolating valve. Then open a tap in the
hot water position. Wait for 10 minutes. If
a flow appears, identify the defective tap
and/or check that the safety valve is
correctly positioned, if there is one (see
Hydraulic
connection, page 9)
Weak flow from the hot
water tap.
Clogged pressure limiting valve
filter.
Clean the filter (see Maintenance).
Pressure limiting valve damaged or
blocked.
Replace the Pressure Temperature
Relief valve (see Maintenance).
Continuous loss of water
from the Pressure
Temperature Relief valve
when not heating.
Network pressure too high.
Check that the pressure at the water
meter outlet is no higher than 5 bar. If
this is not the case, install a pressure
reducer set to 3 bar at the start of the
general water distribution circuit.
The heat pump works
outside off-peak hours
Temperature setting not reached.
Refer to the operation of the modes on
page 17.
The mechanical thermostat safety
device is activated.
Reset the thermostat safety device on
the steatite resistor (item 8 on page 5).
Electric thermostat faulty. Replace the thermostat.
The electric backup does
not work.
Resistor faulty. Replace the resistor.
Water heater not level. Check that the water heater is level.
Condensate overflow.
Condensate discharge blocked.
Clean (see Maintenance by a qualified
professional, page 21).
No siphon. Install a siphon.
Odours.
No water in the siphon. Fill the siphon.
Vapour released from the
Pressure Temperature
Relief valve.
Switch off the electric power supply and
inform your resellers.
Faulty control panel or
display problem.
Interference with the control panel
due to disturbance on the mains
supply network.
Reset the water heater by switching off
the electric power supply, then switching
it back on.
Temperature of the ambient air
outside the tolerated ranges.
Wait for the temperatures to return to the
tolerated ranges. Make sure that the
water heater is installed in a room
measuring more than >20m3, see
Installation, page 6)
The heat pump does not
work for long and the
electric backup works
almost all the time.
Clogged evaporator.
Clean the evaporator (see Maintenance
by a qualified professional, page 21).
The fan does not work.
Fan heavily soiled. Clean the fan.
Loud kettle-like noise.
Scaling inside the water heater Descale.
Other malfunction.
For all other malfunctions, contact after-
sales.
Loading ...
Loading ...
Loading ...