Troubleshooting by Error Code
SiUS341802E
185
Service Diagnosis
2.11 Power Supply Voltage Abnormality
Error Code
A8
Applicable
Models
FXSQ-TA, FXMQ-PB
Method of Error
Detection
Error is detected by checking the input voltage of fan motor.
Error Decision
Conditions
When the input voltage of fan motor is 150 V or less, or 386 V or more.
Supposed
Causes
Defective power supply voltage
Defective connection on signal line
Defective wiring
Instantaneous power failure, others
Troubleshooting
Check the condition of
the power supply.
(1) Check if power
supply voltage is
208~230 V ± 10%.
(2) Check if there is
power open phase
or defective wiring.
(3) Check if power
supply voltage
unbalance is
within 6 V.
YES
There are
problems on
the condition of
power supply
described
above.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Correct any fault.
NO
NO
YES
A8
Reoccurrence of
error.
Check and correct each wiring.
It is possible to have external
factor, such as brownout and
instantaneous power failure.
Summary of Contents for Aurora Series
Page 317: ...SiUS341802E Wiring Diagrams Appendix 304 RXLQ96 120TATJU 2D112581A ...
Page 318: ...Wiring Diagrams SiUS341802E 305 Appendix RXLQ72TAYDU 2D112582A ...
Page 319: ...SiUS341802E Wiring Diagrams Appendix 306 RXLQ96 120TAYDU 2D112583A ...
Page 331: ...SiUS341802E Wiring Diagrams Appendix 318 VAM1200GVJU 3D073270C ...
Page 332: ...Revision History Month Year Version Revised contents 04 2018 SiUS341802E First edition ...