Bosch - Parameter Point Check Table

Bosch Heat Pump: M15, M18, M20

Re: Parameter Point Check Table

To display system parameters, press the “Check” button to index through the series of parameters available. The first time you press the “Check” button, it will display the sequence, and after 1 second it will display the value of the parameter. If you press the “Check” button again, it will display the next sequence.

• Normal Status, last two digits will display under the following conditions:
  • Unit not operating (Standby Mode); “outdoor ambient temperature”.
  • Unit operating; displays “compressor operating frequency”.
• After 20 seconds on same parameter, the display will revert back to normal status.

If a system protection is active, first digit will display “status code”.