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Hybrid electric water heater (WiFi model) – OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER
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Following scheduled or unscheduled maintenance, it is advisable to fill the appliance's tank with water and empty it
completely, to remove any remaining impurities.
8.3 Troubleshooting
Problem Possible cause What to do
The water
delivered is
cold or
insufficiently
hot
Temperature setting is low Raise the water temperature setting
Machine malfunctioning
Check for errors on the display and follow the
instructions on the “Errors” table
No electrical connection, wires disconnected
or damaged Check the voltage on the power terminals, check the
condition of the wires and connections
Insufficient air flow to the evaporator Clean the grilles and ducts regularly
Products is switched OFF
Check the mains power supply. Switch the product
ON
A large quantity of water is used when the product is being heated
Sensors error Check for error 210, 230, even occasional
The water is
boiling (with
possible steam
from the taps)
High level of limescale build-up in the boiler
and components
Unplug the power supply, empty the appliance,
remove the heating element flange and clean the
limescale from the inside of the boiler, taking care not
to damage the enamel on the boiler and the heating
element. Reassemble the product in its original
configuration. It is recommended that the flange
gasket be replaced
Sensors error Check for error 210, 230, even occasional
Reduced
operation of the
heat pump,
electrical
heating element
is in almost
continuous
operation
Air temperature is outside range Component depends on climatic conditions
Installation non-compliant with electrical
power supply (voltage too low)
Power the product with the correct voltage
Evaporator obstructed or frozen
Check the condition of the evaporator, grille and
conduits to ensure they are clean
Problems with the heat pump circuit Check the display for error messages
Insufficient hot
water flow
Leaks or obstructions in the hydraulic circuit
Check the circuit for leaks, check the condition of the
deflector on the cold water pipe
Water leaking
from the
pressure safety
device
It is normal for some water to drip from the
device during the heating phase
To prevent water from dripping, an expansion vessel
must be installed on the delivery system.
If the leak continues even after the heating phase,
check the calibration of the device and the mains
water pressure.
Warning: Never obstruct the device’s
discharge outlet!
Increased noise
level
Presence of an internal obstruction
Check and clean the fan and other moving parts which
could cause noise
Some components are vibrating
Check the components connected using mobile
clamps, ensuring the screws are well tightened
Problems with
viewing the
display or the
display turning
off
Power failure Check the mains power supply