LG Air Conditioner Error 32

⚡ Quick Answer: The LG air conditioner error code 32 indicates a communication failure between the indoor and outdoor units. This issue can prevent the unit from oper... ✅ DIY Fixable

What Does Error 32 Mean?

The LG air conditioner error code 32 indicates a communication failure between the indoor and outdoor units. This issue can prevent the unit from operating normally, often displaying as error code '32' or 'CH32'. The problem may arise from faulty wiring, a malfunctioning PCB, inverter circuit, or compressor issues, particularly in split or inverter models.

Common Symptoms:

  • Error code ‘32’ or ‘CH32’ displayed on indoor unit or remote
  • AC stops cooling/operating normally when code appears
  • May appear on split, multi‑type or inverter models

Possible Causes

  • Communication fault between indoor and outdoor units (medium)

How to Fix Error 32

DIY Fix Basic checks before service call

  1. Turn off AC and disconnect power for a few minutes, then restart to see if code clears
  2. Check outdoor and indoor unit wiring for obvious loose/disconnected communication cables
  3. Clean air filters and ensure nothing obstructs outdoor unit airflow

Technician Only Professional diagnosis and repair

  1. Inspect and test communication wiring between indoor and outdoor units for continuity or damage
  2. Check inverter compressor PCB and outdoor unit PCB for fault codes and electrical parameter anomalies
  3. Test compressor and inverter circuit components (CT sensors, DC link, IPM modules) based on manufacturer tech guidance

Parts needed: communication cable, inverter/PCB modules, compressor electrical components

🛑 When to Call a Pro:
  • If the error persists after power reset and basic checks
  • If wiring is damaged or unclear fault origin
  • If indoor and outdoor units fail to respond after technician inspection

Next step

Choose the next step for 32

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Compressor

Compresses refrigerant within the sealed cooling system and requires specialized service equipment.

Typical part-only price
$180 - $600
DIY difficulty
Hard
Estimated time
120-240 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Air Conditioner parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Air Conditioner Fin Cleaner

For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.

View maintenance supply
Maintenance supply

Model-Compatible Washable AC Filter

A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.

Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.

Find one that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Technical Specifications

wattage 2000W
component Control Board
resistance 5-15 ohms
part_number LG 6711A20045A
voltage_rating 230V AC

Common Questions

What does 32 error mean on lg air conditioner?

Error 32 indicates a communication failure between indoor and outdoor units, stopping normal operation.

Can I fix lg air conditioner 32 error myself?

Yes, you can try resetting the unit, checking wiring, and cleaning air filters before calling a technician.

How much does it cost to fix 32 error?

Repair costs vary by model and region, typically ranging from $$ to $$$.

When should I call a technician for 32?

Call a technician if the error persists after basic troubleshooting or if wiring is damaged.

Sources & References

Data last verified: 2026-07-26

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