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Nefit-Bosch Climate 5000 Multi Split Manual

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Troubleshooting
Climate 5000 MS – 6721830161 (2020/12)
18
4Troubleshooting
NOTICE
Lightning storms and using mobile phones near the appliance can cause
faults in the unit.
▶ Disconnect the unit from the power supply and reconnect.
▶ Switch the appliance back on via the remote control.
4.1 Faults with indication
If a fault occurs during operation, the LEDs flash for an extended period
or an error code is displayed (e.g. EH 02).
If a fault is present for more than 10 minutes:
▶ Briefly disconnect the power supply and switch the indoor unit back
on.
If a fault persists:
▶ Call customer service and provide the fault code and details of the
appliance.
4.2 Faults not indicated
If faults occur during operation that cannot be eliminated:
▶ Call customer service about the fault, providing details of the unit.
Table 3
Fault Possible Cause
The output of the indoor unit is too low. Temperature is set too high or too low.
Air filter is soiled and must be cleaned.
Unfavourable ambient conditions for the indoor unit, e.g. the ventilation openings of the units are
obstructed, doors/windows in the room are open or the room contains powerful heat sources.
Low-noise operation is activated and prevents the full output from being used.
Indoor unit does not switch on. The indoor unit has a safety mechanism to prevent overloading. It may take 3 minutes until the
indoor unit can be restarted.
The batteries of the remote control are empty.
The timer is switched on.
Operating mode changes from Cooling or Heating
to Fan Mode.
The indoor unit changes operating mode to prevent the formation of frost.
The set temperature is reached provisionally.
A white mist is coming from the indoor unit. In humid regions, white mist may appear if there is a significant temperature difference between the
indoor air and air-conditioned air.
White mist is emerging from the indoor unit and
outdoor unit.
If heating mode is activated directly after automatic defrosting, this can generate white mist due to
the higher level of humidity.
There is noise coming from the indoor unit and
outdoor unit.
A swooshing noise may be heard inside the indoor unit if the position of the airflow grille is set back.
A quiet hissing noise is normal during operation. This is caused by the flow of refrigerant.
Creaks and squeaks may be heard, as the metal and plastic parts of the unit expand or contract
during heating/cooling.
The outdoor unit also emits a range of other noises during operation which is normal.
Dust is being discharged from the indoor unit or
outdoor unit.
Dust may accumulate in the units if they are shut down for an extended period and not covered.
Unpleasant odour during operation. Unpleasant odours in the air may enter the units and spread.
There may be mould on the air filter and it must therefore be cleaned.
The fan of the outdoor unit is not running
continuously.
Variable fan control is used to ensure optimum operation.
Operation is irregular or unpredictable or the
indoor unit is not responding.
The indoor unit may be affected by interference from mobile radio masts or external signal
amplifiers.
▶Briefly disconnect the indoor unit from the power supply then restart it.
Air flow panel or louvres are not moving correctly. The air flow panel or louvres have been adjusted manually or have not been correctly installed.
▶ Switch off the indoor unit and check whether the components are engaged correctly.
▶ Power on the indoor unit.
… 18 …


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