ERROR CODECH24Diagnostic reference

LG · Other appliances

LG Dehumidifier CH24: The pressure-switch protection needs attention

THE SHORT ANSWER

The pressure-switch protection needs attention

CH24 indicates the pressure-switch protection needs attention. Inspect the accessible air filter and airflow clearance.

First safe check

Inspect the accessible air filter and airflow clearance.

Applies to

LG dehumidifiers covered by the CH24 guidance.

Before you start

Disconnect power before maintenance described in the owner manual. Do not remove service covers.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

  • The display shows CH24.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 1 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

  1. Clean the filter and remove surrounding obstructions. Unplug for at least three minutes, restore power once, and request service if CH24 returns.

    What to note

    Use the result to decide whether the issue is resolved or needs service.

THE DETAILS MATTER

Scope & troubleshooting notes

Interpret this code in context

Do not bypass the pressure switch. Accessible airflow checks are different from opening the refrigeration system.

YOUR NEXT DECISION

When to stop and get help

Contact LG service if this indication returns or the appliance cannot resume normal operation.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

LG support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

  1. LG Dehumidifier — Error Code List

    LG USA · Manufacturer support · Checked

    Error-code troubleshooting; relevant display identified in the article — LG household dehumidifiers; not LG air-conditioner code definitions.

ErrHive is an independent information resource, not an authorized representative of LG. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.