DIY HVAC Tools

LG mini split error code CH60

Outdoor unit EEPROM error. Also shown as CH 60, CH60.

  • TypeFault
  • SystemControl board
  • Can I fix it?Technician job

What CH60 means on a LG

The outdoor board could not read its stored parameters.

On this platform, CH60 is a fault: something has failed or is disconnected and needs diagnosis.

Common causes

  • A surge or lightning event.
  • A failed board.

How to fix it yourself

Do the reset and the visual checks, but the underlying repair needs a technician with a meter and the service manual.

  1. Reset the system: switch the breaker (or the outdoor disconnect) off, wait a full five minutes so the boards fully discharge, then switch it back on and restart from the remote.
  2. If the code comes straight back after a reset, the fault is real and not a glitch.

Switch off power at the breaker before opening either unit. Capacitors in the outdoor unit hold a charge for several minutes after power is cut.

When to call a technician

Board replacement or reprogramming.

Which LG units show CH60

This page applies to LG Art Cool, Standard, Mega and Multi F units. LG's own documentation lists CH60 as "Outdoor unit EEPROM error", the same definition used across the LG it is built on. If your unit shows a code with a different shape (for example a four-character code, or a plain number), it is from a different table; use the lookup with your exact code.

Where LG shows this code

The indoor display shows CH followed by a number (CH05, CH38). Units without a display blink the indicator lamps in a pattern; the outdoor board LEDs blink the same number. If someone tells you 'CH 5', that is CH05. CH01 to CH12 are indoor-unit faults, CH21 to CH29 are inverter and compressor faults, CH32 to CH38 are refrigerant-side protections, CH40 to CH48 are outdoor sensors, and CH51 to CH73 are outdoor-unit system faults.

Other LG codes

Same part of the system as CH60:

All LG error codes

Questions people ask

Can I reset a LG CH60 code myself?

Yes. Turn the system off at the breaker for five minutes, then restart it. If CH60 comes back, the fault is real and needs the checks above.

Is it safe to keep running a LG showing CH60?

The unit will usually refuse to run, or run with reduced output, until the fault is cleared. Repeated resets do not fix anything and can mask a problem that is getting worse.

What will a technician check for CH60?

Board replacement or reprogramming. Ask for the measurements, not just a parts quote.

Sources

  • LG residential split service manuals (error code tables)

Updated September 2026. Codes and definitions vary by model year. If your manual disagrees with this page, your manual wins. Send a correction.