5361 - Bosch Heat Pump Z2 PFC overcurrent on compressor driver alarm

What does 5361 mean?

This alarm indicates an overcurrent issue in the Power Factor Correction (PFC) part of the compressor driver in Bosch Heat Pump zone 2. It triggers after 3 warnings in 3 hours, or if a warning is active for 30 minutes.

• A short dip or fluctuation in the main power supply.
• Too high voltage being supplied to the Heat Pump.
• An internal fault within the inverter component.

Click steps to track your progress.

1. 1

   Check the main electrical fuses for the Heat Pump for any poor contact or signs of being blown.

2. 2

   Reset the Heat Pump system by cycling its power at the main breaker.

3. 3

   If these warnings occur repeatedly, contact your electricity supplier to check the main input voltage, or contact a qualified technician to inspect the inverter.