motor-cut-out-1-e2x-f11-compressor on an IVT Greenline HE: Activated when the compressor's motor cut-out has tripped because of high current or lost current phase resulting in undue strain on the compressor. Alarms may also be due to alarms from the soft starter (Æ Chapter
Short answer
On an IVT heat pump, motor-cut-out-1-e2x-f11-compressor means: Activated when the compressor's motor cut-out has tripped because of high current or lost current phase resulting in undue strain on the compressor. Alarms may also be due to alarms from the soft starter (Æ Chapter. The heat pump stops until the fault clears or is reset. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: Activated when the compressor's motor cut-out has tripped because of high current or lost current phase resulting in undue strain on the compressor. Alarms may also be due to alarms from the soft starter (Æ Chapter.
Part involved: E2x.F11.
When it shows: Activated when the compressor's motor cut-out has tripped because of high current or lost current phase resulting in undue strain on the compressor. Alarms may also be due to alarms from the soft starter (Æ Chapter.
Is it safe?
| Does the heat pump stop? | Yes |
|---|---|
| Severity | Fault — needs a manual reset once the cause is fixed |
| Engineer needed? | Yes |
The heat pump stops until the fault clears or is reset.
What you can check
- Note the full alarm text including the component designation (e.g. E21.T6) - IVT asks for it when you contact the dealer. Check the heat pump's breaker/isolator at the consumer unit is on and has not tripped. Contact the dealer if the alarm remains after acknowledgement.
What the engineer will check
- Check supply phases, voltage balance (<15%), fuses, soft starter alarms and motor cut-out setting; reset motor cut-out.
Who to ask for: heat pump engineer.
Certification: Qualified electrician / heat pump engineer (electrical fault-finding).
What you might notice
Sources
- Installer Guide Greenline HE C6-C11 E6-E11 1x230V (6 720 802 419 (2012/06) en) ↗ · 6 720 802 419 (2012/06) · page 6 720 802 419 p.67; 6 720 643 409 p.83; 6 720 643 415 p.27 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026