Indoor PCB 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 indoor circuit board has detected a fault in its own circuits or in the stored model data, so the unit does not run normally and usually stops. 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: 111262

Symptoms4

• The unit does not start or stops right after starting.
• The indoor unit does not respond properly to the remote.
• The code or a set blink pattern shows on the indoor unit.
• The fault may appear after a power cut or a voltage surge.

Possible causes5

• A temporary board glitch after a power cut or voltage swing that clears on restart.
• Board damage from a voltage surge or lightning.
• Moisture or water reaching the board from a leak or condensation.
• Loose connectors on the board.
• A replacement board that is not set up for, or does not match, the model.

How to diagnose5

1. Switch off at the breaker for several minutes, restart and see whether the code returns.
2. Check whether the code followed a power cut or voltage swing.
3. With power off, the technician inspects the board for moisture, burn marks or loose connectors.
4. The technician confirms any replacement board has the correct part number and model settings per the service manual.
5. The technician rules out sensor and fan faults before blaming the board.

How to fix5

1. Restart after a power-off; a temporary glitch may clear.
2. Reseat the connectors and clean any corrosion.
3. Fix the source of moisture, such as a blocked drain or water leak.
4. Fit a voltage protector.
5. Replace the board with a matching part set up for the model at an authorized service center, then confirm the code does not return.

Repair cost

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

If a restart clears it, the cost is only the technician visit; it reaches the top of the range when the indoor board is 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