F0 (Overload Current Protection Diagnosis And Solution) - Bosch CLIMATE 5000 Service Manual

Troubleshooting
5.5.9

F0 (Overload current protection diagnosis and solution)

Description: An abnormal current rise is detected by checking the specified current detection circuit.
Possible defects:
• Power supply problems.
• System blockage
• Faulty PCB
• Wiring mistake
• Compressor malfunction
Troubleshooting and repair:
Check the compressor resistance values.
Are the values within acceptable
Check the connections and wires.
52
Check the power supply.
Is it in working range?
YES
Check system for blockages.
Blockage exist?
YES
ranges?
YES
Are they properly
connected?
YES
Check the reactor.
Is it in working range?
YES
Replace the outdoor unit.
NO Stop the unit.
NO Clear the blockage.
NO Replace the compressor.
Ensure proper connections or replace
NO
the wires.
NO
Replace outdoor PCB.
CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08)