H5
Blaupunkt
IPM Protection / Inverter Module Fault
Unit displays H5 and does not start compressor.
Advertisements
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.
Advertisements
Possible Causes
Shorted IPM module on outdoor PCB, Overcurrent event stored in memory, Shorted compressor, Poor heat sinking of IPM
How to Fix / Troubleshooting
Safety first: This is a high-risk inverter fault. Do not attempt board-level repairs without proper training.
Steps:
- Power reset: Turn off power for at least 15 minutes to clear temporary IPM protection. If H5 returns immediately, hardware damage is likely.
- Visual inspection: Check the outdoor PCB for burnt components around the IPM and power section.
- Compressor test: With power off, test compressor windings for shorts as described under E6.
- Replace PCB: If compressor tests good, replace the Blaupunkt outdoor inverter PCB. If compressor is shorted, both compressor and PCB may need replacement.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Outdoor Inverter PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements