What does CH 01 mean on LG air conditioner?

If your LG air conditioner is displaying a CH 01 error code, this means that your indoor pipe sensor has a short or open circuit.

The CH 01 error code displayed on LG air conditioners signifies an issue with the circuit of the indoor pipe sensor. This is an auto-stop protection error that usually requires that a professional takes a look.

What does CH 01 mean on LG air conditioner?

There are few things more frustrating than turning on your LG air conditioner (AC) on a hot day and finding that an error code is preventing the unit from operating normally.

Seeing an error code is not always a bad thing, though, since this can help to diagnose and fix the problem.

However, a ‘CH 01’ error code (also sometimes displayed as ‘E2’) indicates that there is a short or open circuit in the indoor pipe sensor.

This error is an “auto-stop protection” error and because it has to do with one of the electrical components of the AC unit, LG does not recommend that you attempt to fix this sensor yourself.

If you have really found yourself in a pickle with the CH 01 error, then you might be able to glean something by inspecting the sensor. But if you are uncomfortable with this idea, it may be safest to call a professional for help.

Restarting the air conditioner

If your air conditioner is displaying a CH 01 or E2 error code, you first step should always be to try to discharge the unit.

To do this, you will need to unplug the unit from the power outlet for at least two minutes. You can then plug it back in and switch it on again.

Checking the indoor pipe sensor

Sometimes the CH 01 error is not quite as serious as it sounds, and it simply indicates that the indoor pipe sensor has a loose wire or connection, which can easily be reconnected properly.

To do this, you need to consult your LG air conditioner’s user manual to locate the indoor pipe sensor.

You then need to unplug the AC unit and, most likely, remove the front panel and assembly, using a trusty Philips-head screwdriver to access this sensor. Finally, you can start checking for any loose wires or connections.

The dangers of attempting to fix this issue on your own

Usually when the CH 01 error is displayed, this likely means that the indoor pipe sensor, and even in some extreme cases, the entire PCB, needs to be replaced.

These kinds of replacements require specialized electrical and wiring skills and knowledge. Hence, you could end up doing more harm than good if you are unsure of the correct process.

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