Samsung · Split air conditioners · Samsung WindFree AR50F / AR60F / AR70F (wall-mounted split, R32)
C484PFC over load error
Name in the manufacturer's documentation (service manual): PFC over load error
[1]
In plain words (editorial)
PFC overload error. The service manual's first step is to power the unit on again 30 seconds after switching it off; it then checks for obstacles at the inlets and outlets of the indoor and outdoor units, the service valves and the compressor.
When to call a service technician: Remove obstacles around the units; if the error returns, contact an authorised Samsung service technician.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Steps given by the manufacturer (source text)
- Power on 30 seconds after power off[2]
- Is the outdoor unit installed properly? If NO – check for wire disconnection related to outdoor unit inverter PCB; remove obstacles on the inlet and outlet[3]
- Is the indoor unit installed properly? If NO – remove obstacles on the inlet and outlet of the indoor unit[4]
- Is service valve fully opened? – Open the valve[5]
- Is compressor running properly? If NO – Replace the compressor[6]
- Is the version of EEPROM data correct? If NO – Update EEPROM data[7]
- Is the voltage value of IC(=IC061) Pin(2, 4) less than 1V? If YES – Replace OUTDOOR PBA[8]
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 20 manufacturer document – copy from a distributor quote verified
C484 PFC over load error
- [2] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
power on 30 seconds after power off.
- [3] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
remove obstacle on the inlet and secure the space.
- [4] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
is the indoor unit installed properly?
- [5] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
is service valve fully opened?
- [6] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
replace the compressor
- [7] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
is the version of eeprom data correct?
- [8] Samsung – Split-type Air Conditioner Service Manual (indoor AR50F/AR60F/AR70F…C1A…NEU, outdoor …XEU), „GEO WIND FREE EU RS9 25R” (RS9 25R (2025-10-01, wg nazwy pliku)) , p. 112 manufacturer document – copy from a distributor quote verified
is the voltage value of ic(=ic061) pin(2, 4)?-