Bosch Climate 5000 L Manual page 13

Troubleshooting
6.2 Faults not indicated
Fault
The output of the indoor unit is too low.
Outdoor unit or indoor unit is not working.
Outdoor unit or indoor unit starts and stops
continuously.
1) A fuse for the overcurrent protection is located on the main PCB. The specification is printed on the main PCB and can also be found in the technical data on page 60.
Use only ex-protected ceramic fuses.
Table 17
58
Possible cause
Heat exchanger of the outdoor or indoor unit
contaminated or partially blocked.
Shortage of refrigerant
No current
Leakage protector or fuse installed in the
1)
device has blown.
Insufficient refrigerant in the system.
Too much refrigerant in the system.
Moisture or impurities in the refrigerant circuit.
Voltage fluctuations too high.
Defective compressor.
Remedy
▶ Clean heat exchanger of outdoor or indoor
unit.
▶ Check tightness of pipes, reseal if required.
▶ Refill refrigerant.
▶ Check power connection.
▶ Power on the IDU.
▶ Check power connection.
▶ Check the leckage protection and fuse.
▶ Check tightness of pipes, reseal if required.
▶ Refill refrigerant.
Remove refrigerant with refrigerant recovery
unit.
▶ Evacuate refrigerant circuit.
▶ Fill with new refrigerant.
▶ Install voltage regulator.
▶ Replace compressor.
Climate 5000 L • Climate 5000iL – 6721841494 (2022/05)