E117-4 on a Haier Super Aqua R290 Hydro Split / Hydro All-in-One: Fan Motor Software Overcurrent
Short answer
On a Haier heat pump, E117-4 means: Fan Motor Software Overcurrent. 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: Fan Motor Software Overcurrent.
Part involved: DC fan motor and drive.
When it shows: Instantaneous overcurrent of the software on the rectifier side of the fan motor. The fan motor is overloaded. The fan motor software overcurrent.
Is it safe?
| 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.
Resetting itself: yes.
What you can check
- Note the code shown on the controller and the unit model numbers (on the rating plate label) before contacting your installer.
- Check the heat pump's breaker/isolator at the consumer unit is on; do not open any casing.
- Check the outdoor unit is not blocked by leaves, debris, snow or ice and that nothing is stored against the grilles.
- If the breaker or RCD trips repeatedly, leave the heat pump switched off and call an engineer; do not keep resetting it.
What the engineer will check
- Follow the manufacturer's troubleshooting flowchart for this code.
- Check fan for obstruction and free rotation (isolated).
- Check fan motor connector/wiring and drive board.
Who to ask for: Heat pump engineer.
Certification: Heat pump installer competence; F-gas / flammable-refrigerant (R290/R32) handling competence for any refrigerant-circuit work.
What you might notice
Sources
- R290 Super Aqua Hydro Split & Hydro All in One Service Manual - Service Diagnosis (SYJS-03-2024 REV.A) ↗ · SYJS-03-2024 REV.A · page p.49 (printed; PDF p.7) · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026