CLIVET CRISTALLO MM2-Y Serie Manuel D'instructions page 52

Anomalies
The unit starts or stops
frequently
Unsatisfactory heating
performance
The indicator lights
continue to flash
An error code appears
on the display of the
indoor unit:
• E0, E1, E2...
• P1, P2, P3...
• F1, F2, F3...
NOTE: if, after performing the above checks and diagnostic procedures, the problem persists, turn the unit off immediately and
contact an authorized service centre.
18
Possible causes
The amount of refrigerant in the system
is excessive or insufficient
Incompressible gas has entered or
moisture has penetrated the system.
The compressor is faulty
The voltage is too high or too low
The outside temperature is extremely low Using an auxiliary heating appliance
Cold air enters through doors and windows Close doors and windows when using the unit
Low refrigerant level due to leakage or
prolonged use
The unit may stop or continue to operate properly. If the indicator lights continue to flash or
error codes are displayed, wait approximately 10 minutes. The problem may solve itself.
If not, disconnect the unit from the power mains and reconnect it. Turn on the unit.
If the problem persists, disconnect the unit from the power supply and contact the nearest
service centre.
Remedies
Check for leaks and top up the coolant
(Service Centre)
Evacuate the system and recharge the
refrigerant (Service Centre)
Replace the compressor (Service Centre)
Install a voltage controller (Service Centre)
Check for leaks, reseal the system if necessary
and refill the coolant (Service Centre)
Maintenance