Troubleshooting - Ariston 200 Mode D'emploi

Heat pump water heater - OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER

8.3 Troubleshooting

Problem
Low temperature set
Device functioning errors
No electrical connection, disconnected or damaged
wirings
Water comes out
Absence of HC/HP signal (if the product is installed
cold or
with the HC/HP signal cable)
insufficiently
warm Malfunctioning of the timer for two-tier rate (if the
product is installed in this configuration)
Insufficient air flow to the evaporator.
Product off
Usage of a large amount of hot water when the product is heating up phase.
Probe error
The water is
boiling (with the
High level of scaling of the boiler and components
possible
presence of
steam from the
taps)
Probe error
Air temperature out of range
"Time W" value too low
Reduced
Installation done not in accordance with electric
functioning of
voltage (too low)
the heat pump,
semi-permanent
Evaporator clogged or frozen
operation of the
Problems with the heat pump circuit
electrical
resistance
Are not yet past 8 days by:
-First Time instalation.
-Change of the parameter Time-W.
-No power from mains in absence of batteries or exhausted batteries.
Insufficient flow
Leaks or obstructions by the water circuit
of hot water
Overflowing
A drip of water by the device should be considered
water by the the
normal during the heating
safety valve
Presence of obstructive elements inside
Increase of the
noise
Components vibration
Damage or disconnection of the wiring connecting
Problems of
electronic board and interface board
visualization or
No power from mains in absence of batteries or
display off
exhausted batteries.
Bad odor
coming from
Absence of a siphon or siphon empty
the the
product
Abnormal or Loss or partial obstructions of the refrigerant
excessive circuit
Possible reason
79
What to do
Increase the temperature set for the outlet water.
Check for errors on the display and act in the way specified on
the chart "Faults".
Check the voltage at the supply terminals, verify the integrity
and connections of the cables.
Try to put the product in "Boost" mode, if is ok in this way,
check the connection of the meter, check the integrity of the
HC/HP cable.
Check the operation of the contactor day / night and that the
set time is enough to heat water.
Clean the grilles and ducts regularly.
Check availability of electricity, turn on the product.
Control the presence, even if occasional E5.
Turn off the power, drain the unit, remove the sheath of the
resistance and remove lime scale inside the boiler, be careful
not to damage the enamel of the boiler and the sheath
resistance. Repackage the product as in the original
configuration, it is recommended to replace the flange gasket.
Control the presence, even if occasional E5.
Depending from the climatic conditions.
Set a parameter for lower temperature or a longer unit of "Time
W".
Provide a proper Electric voltage.
Check the cleaning of the evaporator.
Make sure that there are no errors on the display.
Verify that there are no leaks along the circuit, check
the integrity of the the deflector pipe, the integrity of incoming
cold water pipe and hot water pipe.
If you want to avoid the drip, install an expansion vessel on the
plant supply.
If leakage continues during the period of no heating, check the
calibration of the device and the pressure of the water network.
Caution: Do not obstruct the hole for evacuation of the device!
Check the components in movement, clean the fan and the
other parts who can generate noise or vibrations.
Check the components fixed with screws, be sure that the
screws are tight.
Check the integrity of the connection, check the operation of
electronic boards.
Check if there is electric mains supply and check the conditions
of the batteries.
Provide a siphon, with the proper quantity of water.
Start your product in heat pump mode, use a leak detector
for R134a to verify that there are no leaks.