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Heat pumps · Error codes · Haier
E71-1Haier · Super Aqua R290 Hydro Split / Hydro All-in-One (AW..HUGHA/HVGHA)

E71-1 on a Haier Super Aqua R290 Hydro Split / Hydro All-in-One: Lower DC Fan Motor Abnormality

Short answer

On a Haier heat pump, E71-1 means: Lower DC Fan Motor Abnormality. 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: Lower DC Fan Motor Abnormality.

Part involved: DC fan motor and drive.

When it shows: Shared description with E71-0: below 20 rpm for 40 s or <20% of target -> fault; confirmed after 3 times in an hour.

Is it safe?

Does the heat pump stop?Yes
SeveritySafety lockout
Engineer needed?Yes

The heat pump stops until the fault clears or is reset.

Resetting itself: yes (until locked).

Manual reset: Locks out after repeated occurrences (see manual remark); engineer reset after the cause is fixed.

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

A code explains what the controller detected, not a confirmed root cause.

Reviewed: 23 September 2026