Total Running Current Protection
What it means
This code appears on Panasonic inverter split air conditioners and is read from the fault history with the CHECK button on the remote. It means the total current drawn by the outdoor unit exceeded the protection limit for a period, so the unit stopped the compressor to protect the board and wiring. The cause is usually an overloaded compressor from heat, dust or low voltage, and the unit may lock out if the code repeats. The same number can mean something different on other brands.
Models covered: Panasonic residential inverter split air conditioners (wall mounted); the code is read with the CHECK button on the remote control.
Symptoms4
- Cooling stops during the hottest hours.
- The supply cable or breaker gets warmer than usual.
- The compressor sounds heavier than usual before stopping.
- A lamp blinks on the indoor unit.
Possible causes6
- A dirty outdoor coil or poor airflow raising pressure and current.
- Low supply voltage, which makes the compressor draw more current.
- A weak outdoor fan.
- Refrigerant overcharged beyond specification.
- Internal compressor wear increasing its load.
- A fault in the current sensing circuit on the board (less common).
How to diagnose5
- Switch off at the breaker, clear the area around the outdoor unit and check the coil for dirt.
- Note whether the code appears only during electrical peak hours.
- The technician measures supply voltage and running current and compares them with the values on the unit label.
- The technician checks refrigerant pressure and confirms the outdoor fan works.
- If current stays high under good conditions, the technician checks the compressor and board.
How to fix5
- Wash the outdoor coil and improve airflow around the outdoor unit.
- Fit a voltage protector or fix low voltage in the building.
- Repair or replace a weak outdoor fan motor.
- Have a licensed technician correct the refrigerant charge.
- Replace the board or compressor at an authorized service center if faulty, 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 cleaning or a voltage protector, higher for a fan motor or board, and reaches the top of the range if 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
Can weak power cause this code?
Yes. With low voltage the compressor draws more current for the same output, so it reaches the protection limit sooner.
Why does it happen only in summer?
Cooling load and pressure peak in summer, so any dirt on the coil or weak fan pushes current over the limit.
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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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