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

This component requires professional diagnosis or specialized service, so no part purchase link is shown.

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Technical Specifications

wattage 1500W
component Compressor
resistance 5-10 ohms
part_number DAE-COMP-12345
voltage_rating 220V AC

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: 2026-04-23

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