Heat pumps · Error codes · Baxi
A06.111Baxi · HP60 / Baxi Assure HP55 High Temperature Monobloc ASHP (R290)
A06.111 on a Baxi HP60 / Baxi Assure HP55 High Temperature Monobloc ASHP: HP unit failure Heat Pump unit failure occurred
Short answer
On a Baxi heat pump, A06.111 means: HP unit failure Heat Pump unit failure occurred. The heat pump keeps running. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: HP unit failure Heat Pump unit failure occurred.
Part involved: PCB communication wiring.
Is it safe?
| Does the heat pump stop? | No |
|---|---|
| Severity | Warning |
| Engineer needed? | Yes |
The heat pump keeps running.
Resetting itself: yes - may disappear spontaneously if conditions improve.
Manual reset: not required.
What you can check
- Note the exact code shown on the controller and when it appeared.
- The manual's user steps allow switching the system off and on once to see if the error clears; if the code returns, contact the installer.
- If the code persists or returns, contact a heat pump engineer.
What the engineer will check
- Diagnose per manufacturer service procedure (manual gives description only).
Who to ask for: heat pump engineer (controls / sensors).
Certification: Manufacturer-trained heat pump engineer.
What you might notice
Sources
- Installation, user and service manual - Indoor unit ASHP Control ↗ · 7887625 - v04 - 22072025 · page 125 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026