Troubleshooting by Error Code
SiME341909EA
172
Part 6 Service Diagnosis
5.8.2 Power Supply Voltage Abnormality (FXMQ-PB)
Applicable
Models
FXMQ-PB
Error Code
A8
Method of Error
Detection
Error is detected by checking the input voltage of the 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
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
Check and correct each wiring.
It is possible to have external
factor, such as brownout and
instantaneous power failure.
Check the condition of the power
supply.
(1) Check if power supply voltage is
220-240 V ± 10%.
(2) Check if there is power open
phase or defective wiring.
(3) Check if power supply voltage
unbalance is within 6 V.
A8
Reoccurrence of
error.
Содержание VRV X RXQ10ARYFK
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