370-95 on an Atlantic heat pump: Compressor motor control error
Short answer
On an Atlantic heat pump, 370-95 means: Compressor motor control error. The heat pump stops until the fault clears or is reset. An engineer is needed to fix the cause. The wording differs by model range — each is shown below.
Reviewed 23 September 2026 · 2 sources
What it means
On the Alféa Excellia A.I. / Excellia Duo A.I. (R410A split, 11-16)
The manual says: Compressor motor control error.
Likely causes:
- Compressor start/position detection or motor control fault.
On the Alféa Extensa A.I. / Extensa Duo A.I. R32 (split, 3-10)
The manual says: Detection of compressor position error (permanent stoppage); model 10: compressor motor control error.
Likely causes:
- Compressor start/position detection or motor control fault.
Is it safe?
On the Alféa Excellia A.I. / Excellia Duo A.I. (R410A split, 11-16)
| Does the heat pump stop? | Yes |
|---|---|
| Severity | Fault — clears by itself when the condition goes |
| Engineer needed? | Yes |
The heat pump stops until the fault clears or is reset.
On the Alféa Extensa A.I. / Extensa Duo A.I. R32 (split, 3-10)
| Does the heat pump stop? | Yes |
|---|---|
| Severity | Safety lockout |
| Engineer needed? | Yes |
The heat pump stops until the fault clears or is reset.
What you can check
- Check the heat pump isolator and consumer-unit breakers are on (do not open any casing).
- Note the error number/LED pattern shown and give it to your installer.
What the engineer will check
- Check compressor wiring, windings and inverter/IPM board.
Who to ask for: refrigeration / electrical.
Certification: Electrical competence; F-gas if compressor replacement.
What you might notice
Sources
- Alféa Excellia A.I. Installation manual (U0611757_1876_EN_14) ↗ · U0611757_1876_EN_14 · page 77 · Reviewed 23 September 2026
- Alfea Extensa A.I. R32 Installation manual (U0671217_2114_EN_11) ↗ · U0671217_2114_EN_11 · page 72 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026