Daewoo Air Conditioner Error P4

⚡ Quick Answer: The Daewoo air conditioner P4 error code typically indicates a compressor overheating issue. This problem may result in unusual sounds and can prevent... ✅ DIY Fixable

What Does Error P4 Mean?

The Daewoo air conditioner P4 error code typically indicates a compressor overheating issue. This problem may result in unusual sounds and can prevent the unit from cooling effectively. If you encounter this error, consider performing a reset by turning off the unit for 5–10 minutes and then powering it back on. If the error persists, further investigation may be needed.

Possible Causes

  • Compressor Overload Relay
  • Dirty Condenser Coils
  • Low Refrigerant Levels

How to Fix Error P4

DIY Fix Gather model‑specific information and reset attempt

  1. Check the exact model number of your Daewoo air conditioner.
  2. Consult any printed or downloaded manual specific to that model (service or user manual).
  3. Try powering off the unit completely, wait 5–10 minutes, then power on to see if the code clears.
  4. If the error persists, contact Daewoo support or your installer with the model number and error code.
🛑 When to Call a Pro:
  • If the error persists after a basic power reset.
  • If the air conditioner fails to operate normally or shows other malfunction symptoms (no cooling, strange noises, etc.).
  • If model‑specific documentation indicates a fault requiring professional service.

Next step

Choose the next step for P4

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

Check during diagnosis

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

note The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering.
part_number None

Common Questions

What does P4 error mean on daewoo air conditioner?

The P4 error indicates a compressor overheating issue, often resulting in unusual sounds.

Can I fix daewoo air conditioner P4 error myself?

Yes, try resetting the unit by powering it off for 5–10 minutes and then turning it back on.

How much does it cost to fix P4 error?

Repair costs vary by model and region; it's best to consult a local technician.

When should I call a technician for P4?

Call a technician if the error persists after a reset or if other malfunction symptoms occur.

Data last verified: 2026-07-31

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