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Heat pumps · Error codes · Gree
EFGree

EF on a Gree heat pump: Outdoor fan error

Short answer

On a Gree heat pump, EF means: Outdoor fan error. The heat pump stops until the fault clears or is reset. An engineer is needed to fix the cause. The wording differs by model range — each is shown below.

Reviewed 23 September 2026 · 6 sources

What it means

On the Versati II (R410A)

The manual says: Outdoor fan error.

Part involved: DC fan motor and drive.

Likely causes:

  • Mainboard of outdoor unit is damaged.
  • The wire connecting the wiring terminals of the mainboard breaks.

On the Versati III Monobloc (R32)

The manual says: Outdoor fan error.

Part involved: DC fan motor and drive.

On the Versati III Split / All-in-one (R32)

The manual says: Fan error.

Part involved: DC fan motor and drive.

On the Versati IV Monobloc (R32)

The manual says: Outdoor fan error.

Part involved: DC fan motor and drive.

Likely causes:

  • Mainboard of outdoor unit is damaged.
  • The wire connecting the wiring terminals of the mainboard breaks.

On the Versati IV Split / All-in-one (R32)

The manual says: Fan error.

Part involved: DC fan motor and drive.

Likely causes:

  • Fan motor wire phase sequence wrong.
  • Fan wiring terminal loose.
  • Mainboard AP2 faulty.
  • Outdoor fan faulty.

On the Versati V R290 Monobloc

The manual says: Fan error.

Part involved: DC fan motor and drive.

Is it safe?

On the Versati II (R410A)

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.

Manual reset: If it occurs for 3 times during one hour, it is cleared by de-energization. If it occurs for less than 3 times, it will be automatically cleared.

On the Versati III Monobloc (R32)

Does the heat pump stop?Yes
Engineer needed?Yes

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

Resetting itself: unknown.

On the Versati III Split / All-in-one (R32)

Does the heat pump stop?Yes
Engineer needed?Yes

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

Resetting itself: unknown.

On the Versati IV Monobloc (R32)

Does the heat pump stop?Yes
SeverityFault — clears by itself when the condition goes
Engineer needed?Yes

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

Resetting itself: yes.

On the Versati IV Split / All-in-one (R32)

Does the heat pump stop?Yes
Engineer needed?Yes

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

Resetting itself: unknown.

On the Versati V R290 Monobloc

Does the heat pump stop?Yes
Engineer needed?Yes

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

Resetting itself: unknown.

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 Gree troubleshooting flowchart for this code in the service manual.
  • 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