50
TROUBLESHOOTING
6�1 Preliminary warnings
For detailed information on accessories please re-
fer to the "Conguration accessories" p. 55 sec-
tion.
Shouldyouencounteranyoftheanomaliesbelow:
• the ventilation does not start even if the water circuit
• the device is losing water in heating mode
• the device is loosing water in cooling mode
• the device generates excessive noise
• there is dew on the front panel
Follow the instructions below:
– disconnect the device from power supply immediate-
ly
– close the water taps
– contact an authorised Technical Assistance Centre or
-
staller or by a specialized support center.
Do not intervene personally.
6�2 Functional aspects not to be interpreted as faults
The following functional aspects may occur during the op-
eration of the appliance, these behaviours of the appliance
are correct and should not be interpreted as a fault:
• The compressor does not start again until 3 minutes
• During operation in heating mode of systems with
heat pump, heat is produced a few minutes after the
compressor starts.
• Periodic defrosting cycles occur during heating op-
eration.
• When switching from domestic hot water production
to cooling and vice versa, the external heat pump is
water.
6�3 Faults reported by the Control Panel
Faults are indicated on the display of the Control Panel.
For reading, refer to the Control Panel Manual.
Manual reset of alarms
Repeating a fault several times will put the appliance in
safety and the alarm must be reset manually.
To restore:
– press and hold for a few seconds
– the padlock disappears from the symbol
– then the symbol
disappears
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