EBR82795402 Genuine AC Line Filter PCB for LG Air Conditioners, LG Mains Noise Filter Board, Power Supply Filter Assembly

Genuine LG AC line filter, part number EBR82795402, supplied as a filter PCB. The AC here means alternating current. The board filters the mains line where it enters the unit, stopping electrical noise and spikes passing between the power supply and the electronics. LG's line filter boards are mainly used in inverter air conditioners, but the exact model isn't recorded. Check the number on your old board.

Why an AC line filter board fails

Line filter boards take the brunt of whatever comes down the power line. Lightning strikes, switching surges and a loose supply connection can all overheat or burst components on the board. Moisture and insects inside the unit are another common source of tracking and burn marks. The usual symptom is a unit that won't power up, trips its breaker, or blows the board fuse when switched on. Look for the cause before replacing it, as a fault elsewhere in the unit may have taken the board out.

Part details

• Genuine LG part EBR82795402
• AC (mains) line filter PCB
• Mainly used in LG inverter air conditioners
• Models not on file, match the board label

Fitting the line filter board

Only a licensed electrician or qualified air conditioning technician should replace a board connected to the mains supply. Turn off the breaker and isolator, confirm the supply is dead with a tester, and photograph the terminals. Fit the new board, tighten each connection, and recheck the earth wiring before power is restored.

Questions about this part

Does AC line filter mean air conditioner?

Here AC stands for alternating current, the mains supply, rather than air conditioning. The board filters that incoming supply. LG uses filter boards like EBR82795402 mainly in inverter air conditioners, so match it to the number on your old board.