Bosch Climate 5000 L - Faults Not Indicated

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