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TROUBLESHOOTING
TROUBLESHOOTING
5�1 Preliminary warnings
Should you encounter any of the anomalies below:
• the ventilation does not start even if the water circuit is
filled with hot or cold water
• 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 immediately
– close the water taps
– contact an authorised Technical Assistance Centre or pro-
fessionally qualified personnel
The interventions must be carried out by a qualified in-
staller or by a specialized support center.
Do not intervene personally.
5�2 Functional aspects not to be interpreted as faults
• The following functional aspects may occur during the
operation of the appliance, these behaviours of the appli-
ance are correct and should not be interpreted as a fault.
• The compressor does not start again until 3 minutes after
being shut off.
• During operation in heating mode of systems with heat
pump, heat is produced a few minutes after the compres-
sor starts.
• Periodic defrosting cycles occur during heating operation.
• When switching from domestic hot water production to
cooling and vice versa, the external heat pump is kept off
for one minute to avoid mixing hot and cold water.
5�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