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Derby Air Conditioner Error Codes

 

Derby Air Conditioner Error Codes
Derby Air Conditioner Error Codes
Error CodesLed Status
E0EEPROM parameter error
E1Indoor / outdoor units communication protection
E2Zero-crossing signal error
E3Fan speed out of control
E5Open or short circuit of outdoor temperature sensor (T4)
E6Open or short circuit of room (T1) or evaporator temperature sensor (T2)
P0Outdoor PCB protection
P1Over voltage or too low voltage protection
P2Temperature protection of compressor top.
P4Inverter compressor drive error

Note: E4 & P3: Reserved function

Diagnosis and Solution

E0 (EEPROM parameter error) error diagnosis and solution

Circuit or software error on indoor PCB ⇒ Replace indoor PCB

E1 (indoor / outdoor units communication protection) error diagnosis and solution

E2 (zero-crossing signal error) diagnosis and solution

E3 (indoor fan speed out of control) diagnosis and solution

Troubleshooting

*Unit does not star:

  • Power cut. Wait for power to be restored.
  • Unit may have become unplugged. Check that plug is securely in wall receptacle.
  • Fuse may have blown. Replace the fuse.
  • Battery in Remote controller may have been exhausted. Replace the battery.
  • The time you have set with timer is incorrect. Wait or cancel timer setting.

*Unit not cooling or heating (Cooling/ heating models only) room very well while air flowing out from the air condtioner:

  • Inappropriate temperature setting. Set temperature correctly.
  • Air filter is blocked. Clean the air filter.
  • Doors or Windows are open. Close the doors or windows.
  • Air inlet or outlet of indoor or outdoor unit has been blocked. Clear obstructions away first, then restart the unit.
  • Compressor 3 minutes protection has been activated. Wait.

If the trouble has not been corrected, please contact a local dealer or the nearest customer service center. Be sure to inform them of the detailed malfunctions and unit model.

Derby AC Self Diagnostic Failure Indications
Derby AC Self Diagnostic Failure Indications

 

Derby Air Conditioner Manual PDF-1

Derby Air Conditioner Manual PDF-2

Derby Air Conditioner Manual PDF-3

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