Daewoo Air Conditioner Error P2

⚡ Quick Answer: The Daewoo air conditioner P2 error code indicates a drainage issue or compressor protection activation due to over-temperature or low refrigerant pre... ✅ DIY Fixable

What Does Error P2 Mean?

The Daewoo air conditioner P2 error code indicates a drainage issue or compressor protection activation due to over-temperature or low refrigerant pressure. Symptoms may include the unit stopping cooling or running, and the compressor may not engage or frequently cut out. If you notice heat at the outdoor compressor housing, this could further signal a problem.

Common Symptoms:

  • Unit stops cooling or stops running and displays P2
  • Compressor not engaging or cutting out frequently
  • Possible heat at outdoor unit compressor housing

Possible Causes

  • Compressor over‑temperature protection triggered (medium)
  • Low‑pressure protection / refrigerant issue (low)

How to Fix Error P2

DIY Fix Basic checks and reset

  1. Turn off the air conditioner and disconnect power for 10–15 minutes to allow internal protections to reset.
  2. Check that outdoor unit coils and ventilation are free of debris or blockage.
  3. Inspect visible refrigerant line insulation and ensure airflow around outdoor unit isn’t restricted.

Technician Only Compressor and refrigerant system diagnostics

  1. Measure compressor head and top temperatures during operation to confirm overheating.
  2. Check refrigerant pressures and inspect for leaks with proper leak detection tools.
  3. Verify operation of overload protector or high‑temperature sensor on compressor.
  4. Inspect and test outdoor main PCB and inverter protection circuits for faults.

Parts needed: Compressor temperature sensor/overload protector, Refrigerant lines and service valves, Outdoor unit PCB / inverter protection module

🛑 When to Call a Pro:
  • Error persists after power reset and basic airflow/ventilation checks
  • Unusual compressor noise, visible oil on lines, or heat at compressor housing
  • Low cooling performance with suspected refrigerant issues

Technical Specifications

wattage 50W
component Drainage System
resistance 5-15 ohms
part_number DAE-DRN-PUMP-01
voltage_rating 220V AC

Common Questions

What does P2 error mean on daewoo air conditioner?

The P2 error indicates a drainage issue or compressor protection activation, causing the unit to stop cooling.

Can I fix daewoo air conditioner P2 error myself?

Yes, you can perform basic checks, reset the unit, and ensure proper airflow and ventilation.

How much does it cost to fix P2 error?

Repair costs for the P2 error range from moderate to high, depending on compressor or PCB replacement.

When should I call a technician for P2?

Call a technician if the error persists after basic checks, or if you notice unusual noises or low cooling performance.

Sources & References

Data last verified: 2026-07-07

User Comments (0)

Share your experience or solution below.

Be the first to comment!