LW8019ER
LG LW8019ER Mid-Size AC Repair

Most common issues on this model
- Cooling that is thin for a 340 sq ft space
- Electronic controls that stop responding
- Auto Cool settings that do not hold
- Unit that stays off after the power returns
- Fan noise that rises over time
The LW8019ER is a Legacy model: an 8,200 BTU LG window air conditioner with an estimated cooling area of 340 square feet, three cooling and three fan speeds, Auto Cool and electronic controls. It restarts by itself after a power failure, and it is still in many homes.
For a unit rated at this room size, we check airflow first, because a coated coil or a slow fan will cut its reach. The electronic controls and the restart behavior come next, followed by the fan at each speed and the compressor start.
Before parts are ordered, the model and serial are read from the label. Every job is priced in writing before work begins, and finished work carries a 30-day workmanship warranty.
Key features
- 8,200 BTU of cooling power
- Estimated cooling area 340 sq ft
- Auto Cool with three speeds each for cooling and fan
- Easy-to-use electronic controls
- Automatic restart after power failure
Error codes this model can show
The controls on my LW8019ER stopped responding. What is it?
It may be the panel, the ribbon connector or the board. We cycle power and test each, so a small connector problem does not turn into a board replacement.
Is 340 sq ft realistic for 8,200 BTU?
It is the estimate LG lists. A room with a lot of sun or high ceilings will make the unit work longer, so we measure output before judging it.
Why would it fail to restart after an outage?
The control board is meant to restore the last settings. If it does not, the plug, outlet and board are the places we check. A worn board is checked only after the simpler causes are ruled out.
Book repair for your LW8019ER
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.
