What does it mean?
The manufacturer identifies CH72 as “Four-way reversing valve position fault” for the covered air conditioner models. Code meanings can differ by model, region and platform; this is not proof that a specific part has failed.
Model match: No manufacturer-manual confirmed exact model list is available for this record. Check the model label and official manual.
Check your exact model manual; the same code can mean something else on other platforms.
The source describes the code; the failed part can only be confirmed by testing the appliance.
Open original manufacturer documentationSafe checks you can try
- 01
Check ventilation clearances and user-accessible air filters
Check ventilation clearances and user-accessible air filters.
- 02
If heating or cooling is impaired, record when the code…
If heating or cooling is impaired, record when the code reappears and do not force operation.
- 03
Refrigerant charging, leak testing, pressure-line opening and…
Refrigerant charging, leak testing, pressure-line opening and compressor work require qualified service.
Safety and warranty: Meaning may vary by model. Gas combustion, live electrical work and sealed refrigerant circuits require licensed professionals. If you smell gas, leave the area and call emergency services.
What a technician would check
A certified technician tests pressure and temperature readings, airflow, sensors, inverter/compressor and sealed refrigerant circuit.
How to verify the result
After a successful user-level check, normal operation should resume and the code should not return. If it repeats, a qualified technician should inspect the exact model.
Do not dismantle sealed systems, gas valves or electrical control boards. Warranty conditions vary by country and model.
Independent information website, not an authorised service provider.
Manufacturer source
https://www.arcelik.com.tr/blog/klima-hata-kodlariChecked on: 2026-11-10. Listed by manufacturer; verify exact model