Senville AC Error Codes

Error Code	Meaning
E0	EEPROM parameter error
E1	Indoor / outdoor units communication protection
E2	Zero-crossing signal error
E3	Indoor fan speed out of control
E5	Open or short circuit of outdoor temperature sensor or outdoor unit EEPROM parameter error
E6	Open or short circuit of room or evaporator temperature sensor
E7	Outdoor fan speed out of control
P0	IBM malfunction or IGBT over-strong current protection
P1	Over voltage or too low voltage protection
P2	Temperature protection of compressor top.

Outdoor unit error display:

On the outdoor PCB, there are two LED lights. One is green, the other is red. You can judge what the error is through the status of the two lights. Indoor Unit Display: P1

• After This Problem You See This LED 6 (Green) Light,  LED 5 (RED) Light: Over voltage or too lows or too voltage protection

Indoor Unit Display: P2

• First One You See For “P1” Now This When You See “p2” LED 6 (Green) Light,  LED 5 (RED) Flash: Over voltage or too lows or too voltage protection

Indoor Unit Display: P4

• LED 6 (Green) Off,  LED 5 (RED) Flash: Inverter compressor drive error

Indoor Unit Display: P4

• LED 6 (Green) Flash,  LED 5 (RED) Light: Inverter compressor drive error

Indoor Unit Display: P4

• LED 6 (Green) Flash,  LED 5 (RED) Flash: Inverter compressor drive error

Indoor Unit Display: P0

• LED 6 (Green) Flash,  LED 5 (RED) Off: IBM malfuntion or IGBT over-strong current protection
• 
  

Troubleshooting

Malfunctions: Unit does not start Cause:

1. When You See This Problem That Means Power cut
2. After This Kind Of Malfunction Unit may have become Unplugged
3. After That You Must See The Fuse may have blown
4. When You Remote Not Operate The Ac maybe Battery in Remote controller may have been exhausted
5. The time you have set with timer is incorrect

What should be done:

1. Wait for power to be restored
2. Check that plug is securely in wall receptacle
3. Replace the fuse
4. Replace the battery
5. Wait or cancel timer setting

Malfunctions: 

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

1. Inappropriate temperature setting
2. Air filter is blocked
3. Doors or Windows are open
4. Air inlet or outlet of indoor or outdoor unit has been blocked
5. Compressor 3 minutes protection has been activated

What should be done:

1. Set temperature correctly. For detailed method please refer to ”Using remote control” section
2. Clean the air filter
3. Close the doors or windows
4. Clear obstructions away first, then restart the unit
5. Wait

Malfunctions: The unit starts and stops frequently Cause:

1. There’s too much or too little refrigerant in the system
2. Incompressible gas or moisture has entered the system.
3. The compressor is broken
4. The voltage is too high or too low

What should be done:

1. Check for leaks and recharge the system with refrigerant.
2. After That Evacuate and recharge the system with refrigerant
3. When Your Problem Is Not Solved Must Need To Replace the compressor
4. When This Happens Install a Voltage Regulator 

Issue: Both the indoor unit and outdoor unit make noises Possible Causes:

1. Low hissing sound during operation: This is normal and is caused by refrigerant gas flowing through both indoor and outdoor units.
2. Low hissing sound when the system starts, has just stopped running, or is defrosting: This noise is normal and is caused by the refrigerant gas stopping or changing direction.
3. Squeaking sound: Normal expansion and contraction of plastic and metal parts caused by temperature changes during operation can cause squeaking noises.