Bosch Climate 5000 - E4;E5;F1;F2;F3 (Open Circuit or Short Circuit of Temperature Sensor Diagnosis and Solution)

CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08) 49
Troubleshooting
5.5.6 E4/E5/F1/F2/F3 (Open circuit or short circuit of temperature sensor diagnosis and solution)
Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure.
Possible defects:
• Wiring mistake
• Faulty sensor
• Faulty PCB
Troubleshooting and repair:
Measure the resistance value of the
sensor.
Is it properly wired?
Check the connection between
temperature sensor and PCB.
Is it within acceptable parameters?
Replace indoor or outdoor PCB
Ensure proper connections.
Replace the Sensor.
NO
NO
YES
YES
Fig. 73.