TGM AC Error Codes and Troubleshooting




TGM Air Conditioner Error Codes
TGM Air Conditioner Error Codes
Error CodesProblem
E0EEPROM parameter error
E1Indoor / outdoor units communication protection
E2Zero-crossing signal error
E3Fan speed out of control
E5Open or short circuit of outdoor ambient or condenser temperature sensor
E6Open or short circuit of indoor room or evaporator temperature sensor
P0Inverter module (IGBT) over-strong current protection
P1Overvoltage or too low voltage protection
P2Temperature protection of compressor top.
P4Inverter compressor drive error
☆ 1 time flashE1 EEPROM parameter error
☆ 2 times flashE2 Zero-crossing signal detection error
☆ 3 times flashE3 Indoor fan speed has been out of control
☆ 5 times flashE5 Indoor room temperature sensor T1 open circuit or short circuit
☆ 6 times flashE6 Evaporator coil temperature sensor T2 open circuit or short circuit
☆ 2 times flashEC Refrigerant leakage detection

Note: E4 & P3: Reserved function

TGM AC Troubleshooting

TGM AC Troubleshooting
TGM AC Troubleshooting

When troubles occur, please check the following points before contacting a repair company.

ProblemPossible CausesSolution
Poor Cooling PerformanceTemperature setting may be higher than ambient room temperatureLower the temperature setting
The heat exchanger on the indoor or outdoor unit is dirtyClean the affected heat exchanger
The air filter is dirtyRemove the filter and clean it according to instructions
The air inlet or outlet of either unit is blockedTurn the unit off, remove the obstruction and turn it back on
Doors and windows are openMake sure that all doors and windows are closed while operating the unit
Excessive heat is generated by sunlightClose windows and curtains during periods of high heat or bright sunshine
Too many sources of heat in the room (people, computers, electronics, etc.)Reduce amount of heat sources
Low refrigerant due to leak or long-term useCheck for leaks, re-seal if necessary and top off refrigerant
SILENCE function is activated(optional function)SILENCE function can lower product performance by reducing operating frequency. Turn off SILENCE function
The unit is not workingPower failureWait for the power to be restored
The power is turned offTurn on the power
The fuse is burned outReplace the fuse
Remote control batteries are deadReplace batteries
The Unit’s 3-minute protection has been activatedWait three minutes after restarting the unit
Timer is activatedTurn timer off
The unit starts and stops frequentlyThere’s too much or too little refrigerant in the systemCheck for leaks and recharge the system with refrigerant.
Incompressible gas or moisture has entered the system.Evacuate and recharge the system with refrigerant
The compressor is brokenReplace the compressor
The voltage is too high or too lowInstall a manostat to regulate the voltage
Poor heating performanceThe outdoor temperature is exetremtly lowUse auxiliary heating device
Cold air is entering through doors and windowsMake sure that all doors and windows are closed during use
Low refrigerant due to leak or long-term useCheck for leaks, re-seal if necessary and top off refrigerant

NOTE: If your problem persists after performing the checks and diagnostics above, turn o your unit immediately and contact an authorized service center.

TGM AC Diagnosis and Solution

  1. EEPROM parameter error diagnosis and solution (E1)
  2. Zero crossing detection error diagnosis and solution (E2)
  3. Indoor fan speed has been out of control diagnosis and solution (E3)
  4. Open circuit or short circuit of temperature sensors diagnosis and solution (E5,E6)
  5. Refrigerant Leakage Detection diagnosis and solution (EC)

EEPROM parameter error diagnosis and solution (E1)




EEPROM parameter error diagnosis and solution(E1)
EEPROM parameter error diagnosis and solution (E1)

EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.

Zero crossing detection error diagnosis and solution (E2)

Zero crossing detection error diagnosis and solution(E2)
Zero crossing detection error diagnosis and solution (E2)

Indoor fan speed has been out of control diagnosis and solution (E3)

Indoor fan speed has been out of control diagnosis and solution (E3)
Indoor fan speed has been out of control diagnosis and solution (E3)

Open circuit or short circuit of temperature sensors diagnosis and solution (E5,E6)

Open circuit or short circuit of temperature sensors diagnosis and solution(E5,E6)
Open circuit or short circuit of temperature sensors diagnosis and solution(E5,E6)

Refrigerant Leakage Detection diagnosis and solution (EC)

Refrigerant Leakage Detection diagnosis and solution(EC)
Refrigerant Leakage Detection diagnosis and solution (EC)

European Disposal Guidelines

This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appliance, the law requires special collection and treatment. Do not dispose of this product as household waste or unsorted municipal waste.




When disposing of this appliance, you have the following options:

  • Dispose of the appliance at designated municipal electronic waste collection facility.
  • When buying a new appliance, the retailer will take back the old appliance free of charge.
  • The manufacturer will take back the old appliance free of charge.
  • Sell the appliance to certied scrap metal dealers.

Special notice

Disposing of this appliance in the forest or other natural surroundings endangers your health and is bad for the environment. Hazardous substances may leak into the ground water and enter the food chain.

TGM Air Conditioner Manual PDF

TGM Air Conditioner Service Manual PDF








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