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Model library · LG Room Air Conditioner

LW1023ERSM

LG LW1023ERSM Window Air Conditioner with ThinQ Service

LG air conditioner

Most common issues on this model

  1. App pairing and remote response
  2. Cooling drop from a loaded coil or filter
  3. Sleep mode and timer behavior
  4. Seal and tilt at the window
  5. Power cord and plug condition

Rated at 10,000 BTU for up to 450 square feet, the LW1023ERSM is an LG window air conditioner you can control from the ThinQ app. Its page lists Energy Saver mode, 4-way air direction, Auto Restart, a 24-hour timer and Sleep mode.

Customers usually call because the room no longer cools, the unit is loud, or the app lost the link. We begin with power and the window install, then the filter and coil, the fan and the compressor start. Timer and Sleep mode problems often come from the board or panel, so we run through those functions too. We confirm the exact model from the label and quote the repair in writing before ordering anything, with a 30-day workmanship warranty on completed work.

Key features

  • Window air conditioner, 10,000 BTU
  • Sized for 450 sq ft rooms
  • ThinQ app and Energy Saver mode
  • 4-way air direction
  • Auto Restart, Sleep mode and a 24-hour timer
LW1023ERSMLW1023ERSM questions
Why does the timer not turn the unit off?

We test the control board's timer function and the panel buttons. If those work, the app or remote settings may be overriding it. We tell you which part is to blame before suggesting a replacement.

Can the unit run all night in Sleep mode?

Yes, Sleep mode is built for overnight use. If it ends early or wakes at full speed, we check the board and temperature sensor. That keeps you from paying for a part the unit does not need.

Should I clean the filter myself?

Yes, rinsing the filter regularly helps airflow and efficiency. If the coil behind it is dirty or icing, that needs a proper check, and we can do it during a visit.

Book a visit

Book repair for your LW1023ERSM

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.

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