Fujitsu General & O General AC Error Codes Explained

Fujitsu General — sold across the UAE under the O General name as well — uses a colon-separated "E:xx" code format on current models, and a two-character format on older units. The two generations overlap in characters but not always in meaning, so the first step is identifying which format your unit displays. On wired remotes the display combines the indoor unit address with the fault code, which is why the reading is often longer than the code itself.

Product families covered

• Current models (E:xx format)

  Colon-separated codes on the indoor display or wired remote.

• Legacy models (two-character format)

  Older splits and multis using hex-style two-character codes.

Where the code is displayed — and why it matters

The same fault can be labelled differently depending on which display you read it from, so identify the display before looking the code up.

Indoor unit display

Wall-mounted splits show the code on the front panel.

Wired remote controller

Displays the indoor unit address as a prefix followed by the fault code — the address is not part of the fault.

Wireless remote LED flash count

Some residential lines signal the fault by counting LED flashes instead of showing characters.

Fujitsu General code groups

On current E:xx models the second character narrows the fault:

E:0 / E:01

Communication — controller to indoor, or indoor to outdoor

E:02–E:07

Room and pipe sensor faults, open or short circuit

E:08

Power source connection or supply fault

E:09

Drain float switch activated

E:0A–E:0F

Outdoor air and discharge temperature faults

E:11–E:13

PCB compatibility, indoor fan and outdoor signal faults

How the families differ

• The legacy two-character table and the current E:xx table are separate. A bare "13" on an old unit and "E:13" on a current one should each be read against their own table.
• Legacy codes are documented with the letter O rather than a zero in several positions (O1, OA, OC, OE) — the character shown on the display decides which row applies.
• On wired remotes the reading combines the indoor unit address with the fault code, so on a multi-split installation it also tells you which indoor unit reported the fault.

Fujitsu General current models (E:xx format)

Codes as displayed on current Fujitsu General and O General models. Severity is not stated in our source material for this brand, so no severity level is published.

Fujitsu General legacy models (two-character format)

Older splits and multis. This table must not be cross-read against the E:xx table.

Before you act on a code

• E:0F reports a high discharge temperature, which our source attributes to contamination in the pipework or a refrigerant shortage. Repeatedly restarting the unit through this fault risks the compressor.
• E:08 is a power-supply fault. If it appears alongside a tripped breaker, leave the unit off and have the supply inspected rather than resetting repeatedly.
• Fujitsu General VRF and J-series-specific variations are still in technical review and are not published here.

B Corroborated across independent technical sources

How to identify your system

1. Note whether the display shows a colon (E:01) or two plain characters (01) — that identifies the code generation.
2. On a wired remote, note the full reading: the address prefix identifies which indoor unit reported the fault.
3. Photograph the indoor unit's model label; O General and Fujitsu General units share the same code tables.

No code showing? Start from the symptom

• AC not cooling
• AC leaking water