Heat pumps · Error codes · Ferroli
bHFerroli · OMNIA M 3.2 monobloc R32 (4-16 kW and 18T-30T)
bH on a Ferroli OMNIA M 3.2 monobloc R32: PED PCB failure
Short answer
On a Ferroli heat pump, bH means: PED PCB failure. The manual does not say whether the heat pump stops. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: PED PCB failure.
Likely causes:
- PED safety board.
- IPM module board.
Is it safe?
| Does the heat pump stop? | Not stated |
|---|---|
| Engineer needed? | Yes |
The manual does not say whether the heat pump stops.
Manual reset: Manual (13.4): reset the safety by turning the unit OFF and back ON; if unsuccessful contact your local dealer.
What you can check
- Check the consumer-unit breaker/isolator for the heat pump is on.
- Note the code shown on the user interface and contact the installer/Ferroli service.
- The manual says the safety can be reset by switching the unit OFF and back ON; if the code returns, do not keep resetting - call the installer.
What the engineer will check
- PED safety board.
- IPM module board.
Who to ask for: heat pump engineer.
Certification: Electrical competence for board/wiring work.
What you might notice
Sources
- OMNIA M 3.2 mod. 4-16 - Reversible heat pumps for outdoor installation with DC inverter compressor - installation/owner manual (IT-EN...) ↗ · Cod. 3QE47740 - Rev. 02 - 11/2023 · page 75 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026