F2 error and the outdoor unit may not run or may shut down frequently.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety first: Disconnect power at the outdoor isolator before opening the outdoor unit.
Steps:
- Locate condenser sensor: Remove the outdoor service panel. The sensor is usually clipped to the condenser coil or discharge line.
- Check attachment: Ensure the sensor is firmly clipped to the coil or pipe and not dangling.
- Inspect cable: Look for cracks, UV damage, or chew marks on the sensor cable. Replace if damaged.
Resolution: Replace the outdoor condenser temperature sensor with the Bosch-specified part. If the error remains, the outdoor PCB sensor circuit may be faulty and should be checked by a technician.
Repair Difficulty
Required Part
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