Inverter Error

What it means

This code appears on Fujitsu General split and ducted units on the wired remote or indoor display; older models show it as a number of indicator lamp blinks instead of a number. It means the inverter circuit in the outdoor unit, which converts power to drive the compressor at variable speed, has detected a fault in its operation, so the compressor stops for protection. The same number can mean something different on other brands.

Models covered: Fujitsu General (Fujitsu, O General) split and ducted units that show a two-digit error code on the wired remote or indoor display; older models show errors as lamp blink counts instead.

Related codes: 94956284

Symptoms4

• The outdoor unit does not start the compressor or stops it soon after.
• No cooling although the indoor unit runs.
• The breaker may trip in some cases.
• The code returns after a restart.

Possible causes5

• Unstable or low supply voltage.
• Loose or burnt connections on the inverter board or compressor wiring.
• A faulty inverter board or power module (IPM).
• An overheated inverter board from dust or poor airflow.
• A compressor fault overloading the inverter circuit (less common).

How to diagnose5

1. Switch off at the breaker for at least ten minutes, then restart once.
2. Note whether the fault coincides with weak power or extreme heat.
3. The technician measures supply voltage against the range on the unit label.
4. After discharging the board, the technician checks the inverter board connections and compressor wires.
5. The technician measures the compressor windings and tests the inverter board output using the service manual.

How to fix5

1. Fit a voltage protector or fix weak power.
2. Tighten connections and repair burnt wiring.
3. Clean the outdoor unit and improve its airflow.
4. Replace the inverter board at an authorized service center if faulty.
5. Replace the compressor first if it is proven faulty, before a new board is fitted, then confirm the code does not return.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low for voltage or connection problems, higher for a new inverter board, and reaches the top of the range in the rare cases where the compressor must be replaced.

Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026

Frequently asked questions