Heat pumps · Error codes · Joule
11Joule · Victorum exhaust air heat pump
11 on a Joule Victorum exhaust air heat pump: Replace filter
Short answer
On a Joule heat pump, 11 means: Replace filter. The heat pump keeps running.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: Replace filter.
Is it safe?
| Does the heat pump stop? | No |
|---|---|
| Severity | Information only |
| Engineer needed? | No |
The heat pump keeps running.
What you can check
- Read and note the code shown on the controller display, then contact your installer or service engineer.
What the engineer will check
- Manual 'possible solution': Air filter to be replaced.
- Check running-hour counters and reset after scheduled maintenance per controller menu.
Who to ask for: heat pump service engineer.
Certification: None specific.
What you might notice
Sources
- Victorum Pre-Plumb & Victorum Compact Exhaust Air Heat Pump Installation & Maintenance Manual ENG-0014-8 ↗ · ENG-0014-8 · page 96 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026