Heat pumps · Error codes · Dimplex
S24Dimplex · WPM heat pump manager platform (error-code grouping)
S24 on a Dimplex WPM heat pump manager platform: Primary circuit load: heat pump disabled by the fan motor protection; restarts by itself
Short answer
On a Dimplex heat pump, S24 means: Primary circuit load: heat pump disabled by the fan motor protection; restarts by itself. The heat pump keeps running with some functions stopped. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: Primary circuit load: heat pump disabled by the fan motor protection; restarts by itself.
Is it safe?
| Does the heat pump stop? | Partly |
|---|---|
| Severity | Fault — clears by itself when the condition goes |
| Engineer needed? | Yes |
The heat pump keeps running with some functions stopped.
Resetting itself: Automatic restart.
What you can check
- Check the outdoor unit fan/coil is not obstructed.
What the engineer will check
- Investigate cause if block recurs frequently.
What you might notice
Sources
- Dimplex WPM Touch heat pump manager - Operating instructions for users and specialists (Order no. 452117.66.02-EN, WPM3.13 / Display 1.15) ↗ · 452117.66.02-EN FD 0302 · page 56 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026