Bosch ODU Split 6 User Manual

Service guide
230 V 1 N~/400 V 3 N~
Split Outdoor unit
6 720 813 707-00.2I
ODU Split 2
ODU Split 4...8
ODU Split 11t...15t
ODU Split 11s...15s
6 720 817 722 (2015/06)

Bosch ODU Split 6 Specifications

General

Brand	Bosch
Model	ODU Split 6
Category	Air Conditioner
Language	English

Summary

Split Outdoor Unit Error Handling

Error Code 21: DC PEAK (IPM Fault)

Details error 21 causes, checks, and troubleshooting steps for IPM faults.

Error Code 21 Diagnosis and Countermeasure Flow Chart

Provides a step-by-step flow chart for diagnosing and resolving error code 21.

Error Code 22: Input Over Current

Explains error 22 causes, checks, and troubleshooting for input over current issues.

Error Code 22 Diagnosis and Countermeasure Flow Chart

Provides a step-by-step flow chart for diagnosing and resolving error code 22.

Error Code 23: DC Link Voltage High/Low

Details error 23 causes, checks, and troubleshooting for DC link voltage issues.

Error Code 23 Diagnosis and Countermeasure Flow Chart

Provides a step-by-step flow chart for diagnosing and resolving error code 23.

Error Code 26: DC Compressor Positioning

Explains error 26 causes, checks, and troubleshooting for compressor positioning.

Error Code 26 Diagnosis and Countermeasure Flow Chart

Provides a step-by-step flow chart for diagnosing and resolving error code 26.

Error Code 27: DC Compressor Positioning

Details error 27 causes, checks, and troubleshooting for compressor positioning.

Error Code 27 Diagnosis and Countermeasure Flow Chart

Provides a step-by-step flow chart for diagnosing and resolving error code 27.

Error Code 29: Inverter Compressor Over Current

Explains error 29 causes, checks, and troubleshooting for inverter over current.

Error Code 29 Diagnosis and Countermeasure Flow Chart

Provides a step-by-step flow chart for diagnosing and resolving error code 29.

Error Code 32: Discharge Pipe High Temperature

Error Code 32 Diagnosis and Countermeasure Flow Chart

Error Code 35: Low Pressure Error

Error Code 35 Diagnosis and Countermeasure Flow Chart

Error Code 43: High Pressure Sensor Error

Error Code 43 Diagnosis and Countermeasure Flow Chart

Error Code 52: PCB Communication Error

Error Code 53: Communication PCB Error

Error Code 54: Phase Sequence Error

Error Code 60: EEPROM Check Sum Error

Error Code 61: Condenser Pipe Temperature

Error Code 61 Diagnosis and Countermeasure Flow Chart

Error Codes 62, 65: Heat Sink Temperature

Error Codes 62, 65 Diagnosis and Countermeasure Flow Chart

Error Code 67: Fan Lock Error

Error Code 67 Diagnosis and Countermeasure Flow Chart

Compressor Resistance Checks

Compressor Replacement Procedure

Electronic Expansion Valve (EEV)

Fan Motor Troubleshooting

INV PCB Replacement Procedure