EQK EAC2H18R2C Troubleshooting Manual Download | Manualshive

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Thank you very much for purchasing our air conditioner. Please read this owen's manual carefully before

using your air conditioner.

Model No.: EAC2H18R2C

EAC4H36R2C

EAC3H24R2C

EAC5H42R2C

Multi Zone Mini Split Air Conditioner

Troubleshooting Manual

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Summary of Contents for EAC2H18R2C

Page 1: ...r purchasing our air conditioner Please read this owen s manual carefully before using your air conditioner Model No EAC2H18R2C EAC4H36R2C EAC3H24R2C EAC5H42R2C Multi Zone Mini Split Air Conditioner T...

Page 2: ...cy operation with portable convenience By following the operating and care instructions in this manual your air conditioner will provide you with many years of reliable service Please visit our websit...

Page 3: ...t has been blocked Remove block obstacles Poor cooling heating 1 The outdoor heat exchanger is dirty such as condenser 2 3 There are heating devices indoors The air tightness is not enough People come...

Page 4: ...ontrol board TO CHECK CODES 1 EAC2H18R2C 2 EAC2H18R2C EAC4H36R2C EAC3H24R2C EAC5H42R2C Drive failure indicator Main control failure indicator Main Control Board Main control failure Fault code will di...

Page 5: ...4 TROUBLESHOOTING Drive fault code display s...

Page 6: ...board components 3 Reassembly the EE components 5 Cooling freezing protection the indoor coil temperature is too low or heating overload indoor coil temperature is too high 1 The indoor unit can not...

Page 7: ...8 AC voltage is abnormal 1 The AC voltage 275V or 160V 2 The AC voltage of sampling circuit on the driver board is abnormal 1 Normal protection please check the supply power 2 Replace the driver board...

Page 8: ...LESHOOTING You can check the driver board LED to further a ze the fault code of the drive board and to learn about what leads to the fault and how to operate it information can be n in d r s for a d w...

Page 9: ...SHOOTING d r s for a d w emarks 1 is ed ly 2 s 3 s 4 s Too high d that the is longer 3 fails 4 1 2 ring 1 connecting is 2 per fails 3 per fails 4 per s 5 per per Lacking of ring 1 connecting is 2 s 3...

Page 10: ...connected loosely 2 The sequence of the wiring between the wired controller to the indoor control board is wrong 3 The wiring between the wired controller to the indoor control board fails 4 The wire...

Page 11: ...as condenser 5 The speed of the outdoor fan motor is too low Check the outdoor fan motor and fan capacitor 6 The outdoor fan is broken or the outdoor fan is blocked Check the outdoor fan 7 The air in...

Page 12: ...hange the driver board 14 PFC LOW voltage detected failure 15 AD offset abnormal detected failure Driver board fails Change the driver board 16 Inverter PWM logic set fault 17 Inverter PWM initializat...

Page 13: ...ty How to deal with failure in drive control 1 C is not ed properly 2 3 4 5 6 fails 1 2 3 the is d 4 5 6 2 failure in drive control 1 2 3 2 3 3 4 failure in drive control 1 2 3 ils 1 2 ils 3 4 2 3 2 3...

Page 14: ...d 18 Driver board read EE data error 1 EEPROM has no data or data error 2 EEPROM circuit fault 1 Change EEPROM component 2 Change the driver board 19 PFC chip receive data fault Abnormal communication...

Page 15: ...Emerson Quiet Kool Co Ltd 120 US 46 Parsippany Troy Hills NJ 07054 Toll Free 1 888 493 0305 Version Update 2021 5 0...

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