Lg Air Conditioner Error 61

⚡ Quick Answer: The LG air conditioner error code 61 (CH61) signifies a communication failure between the indoor and outdoor units, often due to overheating. This can... ✅ DIY Fixable

What Does Error 61 Mean?

The LG air conditioner error code 61 (CH61) signifies a communication failure between the indoor and outdoor units, often due to overheating. This can occur when the outdoor unit lacks proper ventilation or when the indoor unit overheats while in heating mode. The system enters a protective state, stopping operation to prevent damage.

Common Symptoms:

  • Error code CH61 appears during operation
  • Outdoor unit high temperature / poor ventilation
  • Possible reduced cooling performance or shut‑down to protect unit
  • In heating mode indoor unit may overheat due to poor intake airflow

Possible Causes

  • Outdoor unit overheating due to poor ventilation or high ambient temperature (high)

How to Fix Error 61

DIY Fix Improve outdoor unit airflow and ventilation

  1. Ensure outdoor unit is installed with good airflow around it (clear of obstacles)
  2. Open windows or ventilation paths near outdoor unit to allow heat to dissipate
  3. If outdoor unit is in an enclosed space, provide adequate ventilation or move unit if feasible

DIY Fix Regular indoor filter cleaning (especially in heating mode)

  1. Turn off AC and remove indoor unit filters
  2. Clean filters of dust and debris per manual instructions
  3. Reinstall filters properly and restart unit

Technician Only Inspect outdoor unit heat exchanger and fan operation

  1. Check outdoor coil for dirt build‑up and clean as needed
  2. Verify outdoor fan motor and blades operate correctly
  3. Confirm installation meets ventilation specifications and clearances

Parts needed: condenser coil cleaning tools, fan motor / blades (if replacement)

🛑 When to Call a Pro:
  • If CH61 persists repeatedly after improving airflow and cleaning filters
  • If outdoor fan motor or condenser coil appears damaged or fails to maintain proper temperatures
  • If error appears during normal use without obvious ventilation or filter issues

Technical Specifications

wattage 2000W
component Control Board
resistance 5-10 ohms
part_number LG 6711A20045B
voltage_rating 220V AC

Common Questions

What does 61 error mean on lg air conditioner?

Error 61 indicates overheating, often due to poor ventilation between the indoor and outdoor units.

Can I fix lg air conditioner 61 error myself?

Yes, improve outdoor airflow and clean indoor filters to help resolve the issue.

How much does it cost to fix 61 error?

Repair costs range from $100 to $400, depending on parts and labor.

When should I call a technician for 61?

Call a technician if the error persists after DIY fixes or if you notice damage to the outdoor components.

Sources & References

Data last verified: 2026-01-10

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