- Appliances
- Dehumidifiers
CH67
LG CH 67 on a dehumidifier: fan lock, fan not turning
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
On an LG dehumidifier, CH 67 means a fan lock error. LG says to unplug it, wait 3 minutes and restore power; if the code returns, it needs repair.
Safety first
Stop and check this first
- Do not push fingers or objects through the grilles to move the fan: the unit runs on mains power and can start.
Safe checks you can perform
- Exact code
- Unplug for 3 minutes
- Fan noise at start-up
Leave these tasks to a qualified professional
- Do not attempt this professional task: Diagnosis of the fan and its motor
- Do not attempt this professional task: Operating test
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Diagnosis of the fan and its motor
What they doWith the unit unplugged, the technician checks the fan turns freely and tests the motor and its connection following LG's procedure.
They must show youthe fan turning freely and the motor test.
In writingthe cause, the part replaced with its reference and the reason.
Operating test
What they doAfter the repair, the technician leaves the unit running and checks it collects water and CH 67 does not return.
They must show youthe unit running and collecting water without a code.
In writingthe test and the result.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Exact code
- Who:
- you.
- How:
- confirm the display shows CH 67 and not CH alone (refrigerant leak) or CH 24 (pressure switch).
- Result that matters:
- that the code is the fan lock one.
- If it is CH 67:
- move on to the reset.
- If it is another code:
- look it up; the steps differ.
- Evidence to keep:
- photo of the display.
Evidence: LG Dehumidifier - Error Code List
Unplug for 3 minutes
- Who:
- you, no tools.
- How:
- unplug the dehumidifier, wait 3 minutes and plug it back in, as LG says.
- Result that matters:
- whether the unit starts without the code.
- If it starts without CH 67:
- it was a one-off; watch for repeats.
- If CH 67 returns:
- LG says it needs repair; do not open the casing.
- Evidence to keep:
- note of the reset time and the result.
Evidence: LG Dehumidifier - Error Code List
Fan noise at start-up
- Who:
- you, without opening the unit.
- How:
- when you switch it back on, listen for whether the fan starts, rubs or makes no sound, and check the grilles are not covered.
- Result that matters:
- a clue for the technician.
- If it rubs or knocks:
- switch off and tell the technician; something may be holding the fan.
- If it makes no sound:
- say so too; it points to the motor or control.
- Evidence to keep:
- short video with sound of the start-up.
Evidence: LG Dehumidifier - Error Code List
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- LG
- Product type
- Dehumidifiers
Known code variants
- CH67
- deshumidificador LG CH67 ventilador bloqueado
- EF
- LG CH67
- LG dehumidifier CH 67
- LG dehumidifier CH67 fan lock
- LG deshumidificador CH 67
- LG EF
- LG outdoor fan error
- ventilador exterior LG
What it means
LG defines CH 67 as a fan lock error: the control detects the fan is not turning as it should. The fan moves air across the cold coil; without it, the unit does not dehumidify. LG's step is to unplug, wait 3 minutes and restore power. If the error returns, LG says it needs repair. The code does not separate a fan held by an obstacle, a failed motor or a control fault, so it does not prove the motor needs replacing.
Warnings and stop conditions
- Loweditorial warning
Do not push fingers or objects through the grilles to move the fan: the unit runs on mains power and can start.
Evidence: LG Dehumidifier - Error Code List
Symptoms and causes
Probable causes · in order
- One-off lockPossible
If CH 67 does not return after unplugging for 3 minutes, the fan stalled once and started on reset.
Evidence: LG Dehumidifier - Error Code List
- Fan or motor faultPossible
If the error returns after the reset, LG says it needs repair; the technician must check the fan turns freely and the motor responds.
Evidence: LG Dehumidifier - Error Code List
Virtual technician
Does CH67 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
LG Dehumidifier - Error Code List
LG Electronics · 2025 · official_doc
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