Aux AC Error Codes and Troubleshooting

 AUX Air Conditioning Error Codes;

Aux Air Conditioner Error Codes

1.HS(Y) HSA(Y) HSB(Y) HSF (Y) HV(Y) HVA(Y) digital display for the series air-conditioner faults:

Error Codes	Problem
E1	Plastic temp sensor is abnormal. The display precedence level: 2
E2	Copper temp sensor is abnormal (outdoor). The display precedence level: 4
E3	Copper temp sensor is abnormal (indoor). The display precedence level: 3
E4	PG motor feedback is abnormal. The display precedence level: 1
E5	Abnormality of outdoor unit
E6	Over-current oprotection
E7	External feedback failure
E8	Overheat protection
E9	Water pump failure
dF	Indicates "dF"or defrosting indicator displays
L1	Failure of coiled pipe sensor
L2	Failure of room temperature sensor
L6	Without feedback of internal fan motor

Wiring Diagram

2. H (Except KFR-25G/H) H1 HA HB series faults display:

• Fault source: PG motor feedback is abnormal
• Display mode: Timing light twinkles 4 times in every 8 seconds
• The display precedence level: 1

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: Timing light twinkles 1 times in every 8 seconds
• The display precedence level: 2

 

• Fault source: Copper temp sensor is abnormal (indoor)
• Display mode: Timing light twinkles 2 times in every 8 seconds
• The display precedence level: 3

 

• Fault source: Copper temp sensor is abnormal (indoor)
• Display mode: Timing light twinkles 1 times in every 1 seconds
• The display precedence level: 4

3. H(Y) Model air conditioner fault display:

• Fault source: PG motor feedback is abnormal
• Display mode: Timing light twinkles 4 times in every 8 seconds
• The display precedence level: 1

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: Timing light twinkles 1 times in every 8 seconds
• The display precedence level: 2

 

• Fault source: Copper temp sensor is abnormal (indoor)
• Display mode: Timing light twinkles 2 times in every 8 seconds
• The display precedence level: 3

 

• Fault source: Copper temp sensor is abnormal (outdoor)
• Display mode: Timing light twinkles 1 times in every 1 seconds
• The display precedence level: 4

4. EA EC EM EY EZ EAA EAD EL HS1 HSZ HL1 HLZ P P1 ZZ CZ digital display series ac faults:

• Fault source: PG motor feedback is abnormal
• Display mode: E4
• The display precedence level: 1

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: E1
• The display precedence level: 2

 

• Fault source: Copper temp sensor is abnormal (indoor)
• Display mode: E3
• The display precedence level: 3

Aux Air Conditioner Remote Control

5. All of the other E series except EA EC EM EY EZ EAA EAD:

• Fault source: PG motor feedback is abnormal
• Display mode: Timing light twinkles 4 times in every 8 seconds
• The display precedence level: 1

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: Timing light twinkles 1 times in every 8 seconds
• The display precedence level: 2

 

• Fault source: Copper temp sensor is abnormal (indoor)
• Display mode: Timing light twinkles 2 times in every 8 seconds
• The display precedence level: 3

6. QA QB QD digital display series ac faults:

• Fault source: PG motor feedback is abnormal
• Display mode: E4
• The display precedence level: 1

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: E1
• The display precedence level: 2

 

• Fault source: Copper temp sensor is abnormal
• Display mode: E3
• The display precedence level: 3

 

• Fault source: Over-current oprotection
• Display mode: E6
• The display precedence level: 4

7. QC QQ light display series air-conditioner faults:

• Fault source: PG motor feedback is abnormal
• Display mode: Timing light twinkles 4 times in every 8 seconds
• The display precedence level: 1

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: Timing light twinkles 1 times in every 8 seconds
• The display precedence level: 2

 

• Fault source: Copper temp sensor is abnormal
• Display mode: Timing light twinkles 3 times in every 8 seconds
• The display precedence level: 3

 

• Fault source: Over-current oprotection
• Display mode: Timing light twinkles 6 times in every 8 seconds
• The display precedence level: 4

8. Faults display of 18000BTU~24000BTU wall unit series ac non-digital tube displays:

• Fault source: PG motor feedback is abnormal
• Display mode: Timing light twinkles 1 times in every 8 seconds
• The display precedence level: 2
• appearance: System turns off

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: Timing light twinkles 2 times in every 8 seconds
• The display precedence level: 3
• appearance: System turns off

 

• Fault source: Copper temp sensor is abnormal
• Display mode: Timing light twinkles 8 times in every 8 seconds
• The display precedence level: 4
• appearance: System doesn’t turns off

Digital tube displays:

• Fault source: PG motor feedback is abnormal
• Display mode: E1
• The display precedence level: 2
• appearance: System turns off

 

• Fault source: Plastic temp sensor is abnormal
• Display mode: E3
• The display precedence level: 3
• appearance: System turns off

 

• Fault source: Copper temp sensor is abnormal
• Display mode: E2
• The display precedence level: 4
• appearance: System doesn’t turn off

 

• E1: Temperature sensor of air intake fault
• E2: Temperature sensor of outdoor coil fault
• E3: Temperature sensor of indoor coil fault
• E4: PG motor of indoor unit feedback fault

AUX Air Conditioning Wall Mounted Error Codes

AUX Air Conditioning Wall Mounted Error Codes

Self-check information: Hint to defrosting

• Self-check code of luminotron: Flicker 1 time/1s
• Digital self-check code: Indicates “dF“or defrosting indicator displays

Self-check information: Hint to defense against cold wind

• Self-check code of luminotron: Flicker 1 time/3s
• Digital self-check code: Fan motor picture not running

Self-check information: Failure of room temperature sensor

• Self-check code of luminotron: Flicker 2 times/4s (Flicker 2 times/8s)
• Digital self-check code: E2/(L2)

Self-check information: Failure of coiled pipe sensor

• Self-check code of luminotron: Flicker 3 times/5s (Flicker 1 time/8s)
• Digital self-check code: E3/(L1)

Self-check information: Abnormality of outdoor unit

• Self-check code of luminotron: Flicker 4 times/6s (luminating)
• Digital self-check code: E4/(E5)

Self-check information: Without feedback of internal fan motor

• Self-check code of luminotron: Flicker 5 times/7s (Flicker 6 times/8s)
• Digital self-check code: E5/(L6)

Self-check information: Zero crossing signal without current

• Self-check code of luminotron: Flicker 6 times/8s
• Digital self-check code: E6

Self-check information: External feedback failure

• Self-check code of luminotron: Flicker 7 times/9s
• Digital self-check code: E7

Self-check information: Overheat protection

• Self-check code of luminotron: Flicker 8 times/10s
• Digital self-check code: E8

Self-check information: Water pump failure

• Self-check code of luminotron: Flicker 9 times/11s
• Digital self-check code: E9

 

Aux AC Error Codes and Troubleshooting

Troubleshooting Guide

Problem: The motor is heard operating but the air-conditioner dose not work when the indoor unit is powered on

Cause: Since the air-conditioner is powered on, it will come to working condition as long as you press the ON/OFF button of the remote control and the signal is well received.

Problem: The compressor stops running but the indoor fan motor keeps working when it is at cooling mode with the indoor temperature higher than set temperature.

Cause: If you turn off the air-conditioner and restart it immediately, it will return to normal in 3 minutes, after that, the air-conditioner will automatically adjust the indoor fan speed to what you set.

Problem: The compressor works discontinuously at dehumidifying mode.

Cause: The air-conditioner will automatically control the working of the compressor according to the inside temperature

Problem: The air-conditioner dose not work while the LED display is on.

Cause: The TIMER is set with the air-conditioner,it will be in hold on condition. If the TIMER setting is cancelled, the air-conditioner will return to normal working condition.

Problem: The compressor works discontinuously at cooling and dehumidifying mode, and the indoor fan motor slows down.

Cause: The compressor stops internally or the fan motor slows down to prevent the indoor heat exchanger from being frozen.

AUX Air conditioner manual PDF

Split type wall mounted air-conditioner Owners Manual