AISIN SEIKI E1 Series User Manual

175
TROUBLESHOOTING
Error
frequency
until error
display
Display
Treatment
Method of diagnosis / repair
Possible major causes Diagnosis / Repair
※1 ※2
1 Error B, E N 1. Power supply is OFF during operation.
(Power failure, open phase)
2. Outdoor unit signal wire connection
failure during operation (disconnected or
loosened)
3. Communication failure caused by noise
or other effect
4. Outdoor control PCB failure
1. Refer to P198, 1)Check Power Supply
System
2. Check outdoor signal wire
3. Check wiring path
4. Shield signal wire
5. Inspect or replace outdoor control PCB
－ Error X N 1. Signal wire connection failure (discon-
nected or loosened)
2. Power supply is OFF during operation.
(Power failure, open phase)
3. Communication failure caused by noise
or other effect
4. Remote controller PCB failure
1. Refer to P198, 1)Check Power Supply
System
2. Check signal wire
3. Check wiring path
4. Shield signal wire
5. Inspect or replace remote controller PCB
Depends on error content. 1. Outdoor unit signal wire connection
failure during operation (disconnected or
loosened)
2. Power for either indoor or outdoor unit is
OFF when the indoor and outdoor units
are connected to separate power
supplies. (Power failure, open phase)
3. Communication failure between indoor
and outdoor units caused by noise or
other effect
4. Outdoor control PCB failure
1. Refer to P198, 1)Check Power Supply
System
2. Check signal wire between indoor and
outdoor units
3. Check wiring path
4. Shield signal wiring between indoor and
outdoor units
5. Inspect or replace outdoor control PCB
1ErrorB, EN
1
－ E N 1. Outdoor unit signal wire connection
failure during operation (disconnected or
loosened)
2. Power supply is OFF during operation.
(Power failure, open phase)
3. Communication failure caused by noise
or other effect
4. Outdoor control PCB failure
1. Refer to P198, 1)Check Power Supply
System
2. Check outdoor signal wire
3. Check wiring path
4. Shield signal wire
5. Inspect or replace outdoor control PCB
E: The system prohibits the outdoor unit operation. (Including prohibiting starting.)
F: The system stops only the faulty fan motor.
X: The system stops only the faulty indoor unit.
Z: The system continues operation.
※ 2) B: Backup function under combined installation enabled
N: Backup function under combined installation disabled

AISIN SEIKI E1 Series Specifications

General

Brand	AISIN SEIKI
Model	E1 Series
Category	Air Conditioner
Language	English