Ariston 200D Anweisungen für Installation, Verwendung und Wartung - Seite 25

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TROUBLESHOOTING

PROBLEM
POSSIBLE CAUSE
Temperature setting is low
Machine malfunctioning
No electrical connection, wires disconnected or
damaged
HC/HP signal missing (if the product is installed
with EDF signal cable)
The water delivered is cold
or insufficiently hot
Malfunctioning of the timer for the two-tier rate (if
the product is installed with this
configuration)
Insufficient air flow to the evaporator
Product is switched OFF
Use of a significant amount of
Sensor error
High level of limescale build-up in the boiler and
The water is boiling (with
components
possible steam on the taps)
Sensor error
"Time W" value too low
Installation performed with non-compliant electric-
ity power supply (voltage too low)
Reduced operation of the
Evaporator obstructed or frozen
heat pump, electrical heat-
Problems with the heat pump circuit
ing element is in almost
continuous operation
8 days have not passed yet since:
- Initial start-up
- Time W parameter change.
- Power failure.
Insufficient hot water flow
Leaks or obstructions in the hydraulic circuit
Water leaking from the
It is normal for some water to drip from the device
pressure safety device
during the heating phase
Presence of an internal obstruction
Increased noise level
Some components are vibrating
Failure or electrical connection problems between
Problems with viewing the
the motherboard and the interface PCB
display or the display turn-
ing off
Power failure
A bad odour is coming from
No siphon or siphon is empty
the product
Leaks or partial obstruction in the
refrigerant gas circuit
Unfavourable environmental or installation condi-
Abnormal or excessive
tions
consumption than expected
Evaporator is partially obstructed
Non-compliant installation
Other
WHAT TO DO
Raise the water temperature setting
Check for errors on the display and follow the instructions on the "Er-
rors" table
Check the voltage on the power terminals, check the condition of the
wires and connections
To check the operation of the product start the "Boost" mode; if the out-
come is positive check the presence of the HC/HP signal from the meter
and check that the EDF cabling is intact
Check the operation of the day/night meter and that the set time is suf-
ficient to heat the water
Clean the grilles and ducts regularly
Check the mains power supply. Switch the product ON
hot water when the product is in heating phase
Check for NTC errors, even occasional ones.
Unplug the power supply, empty the appliance, remove the heating ele-
ment sheath and clean the limescale from the inside of the boiler, taking
care not to damage the enamel on the boiler and the heating element
sheath. Reassemble the product in its original configuration. We recom-
mend replacing the flange gasket.
Check for NTC errors, even occasional ones.
Set a lower temperature parameter or a higher "Time W" parameter
Power the product with the correct voltage
Make sure that the evaporator is clean
Check the display for error messages
wait 8 days
Check the circuit for leaks, check the condition of the deflector on the
inlet cold water pipe and the integrity of the delivery hot water pipe
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!
Check the moving components of the unit, clean the fan and other mov-
ing parts which could cause noise
Check the components connected using mobile clamps, ensuring the
screws are well tightened
Check the connection status and the correct operation of the PCBs.
Check the power supply
Install a siphon. Ensure it contains the necessary amount of water
Switch the product ON in heat pump mode, use a leak detector for the
specific type of gas to ensure there are no leaks
Check the condition of the evaporator, grille and conduits to ensure they
are clean
Contact technical assistance
25 / EN