Alarm Display = 1C
Problem - Frost preven on sensor and Abnormal temperature sensor value
Cause -Indoor heat exchanger temperature too low
TH3 temperature sensor has a loose or broken connecton
Corrective Action -Do not use the air conditioner if ambient
temperature is lower than 18°C (64°F)
Contact a qualified service agent
Alarm Display = P5
Problem - Refrigerant high pressure switch
Cause Blocked air filter
Blocked Ikinked exhaust duct
Ambient temperature is too high
Corrective Action - Clean air filter
Ensure exhaust duct is not blocked / kinked
Do not use the air conditioner if ambient temperature is higher than 45°C (113°F)
Alarm Display = 51
Problem = Abnormal temperature sensor value
Alarm Display = 52
Problem = Abnormal temperature sensor value
Cause = TH2(inlet) temperature sensor has a loose or broken connection
Corrective Action = Contact a qualified service agent
Alarm Display = C0
Problem = Compressor overloaded
Cause - Ambient temperature is too high
Unstable voltage supply
Defective compressor
Corrective Action - Do not use the air conditioner if ambient temperature is higher than 45°C (113°F)
- Contact a qualified service agent
Replace compressor
Alarm Display = Ft
Problem = Condensate water level alarm
Cause = Condensate tank is full
Corrective Action = - Empty the water tank
Alarm Display = FU
Problem = Drain pump alarm
Cause = Drain pump defective or improper hose connection (including kink or blockage)
Corrective Action = Check the hose connection and hose
Replace drain pump