Alarm 5522 - Wrong combination of indoor and outdoor units

What does 5522 mean?

This alarm indicates that the rotary encoder setting on the installer board does not match the specific indoor and outdoor Heat Pump units installed. This often happens after replacing a component if the new part isn't configured correctly.

• Non-matching combination of Heat Pump and indoor unit.
• Rotary encoder on a new I/O module or installer board was not set up correctly.

Click steps to track your progress.

1. 1

   Note the alarm code 5522.

2. 2

   Contact a qualified Bosch Heat Pump installer or service technician.

3. 3

   The technician will verify the combination of your units and correctly set the rotary encoder on the installer board according to documentation.