Daikin RXYQ-TA Series, Руководство по обслуживанию, Страница: 247 / 337

SiUS341615E Troubleshooting by Error Code
Service Diagnosis 234
3.39 Outdoor Fan Motor Signal Abnormality
Error Code
H7
Applicable
Models
All outdoor unit models
Method of Error
Detection
Detect of abnormal signal from fan motor.
Error Decision
Conditions
An abnormal signal is detected at startup of the fan motor operation.
Supposed
Causes
„
Abnormal signal from fan motor (Circuit failure)
„
Disconnection/Short circuit in fan motor leads or disconnection of connector
„
Defective inverter PCB (A3P, A6P)
Troubleshooting
Refer to page 304.
Properly connect the connector.
NO
YES
Replace the fan motor.
NO
YES
Turn OFF the power supply.
Check for the connector
of the fan motor.
Replace the fan PCB.
RXYQ72TA: A4P
RXYQ96/120T: A4P, A5P
RXYQ144/168TA: A4P, A7P
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is the
connector of
signal cable of the
relevant fan motor
normally
connected?
Is
resistance
between Vcc and
UVW and between GND
and UVW of the fan
motor lead in
balance?
Check for fan motor applicable to the error code H7 while in monitor mode.
• Sub code
Fan motor 1 (M1F): H07-01 (Master), H7-05 (Slave 1), H7-09 (Slave 2)
Fan motor 2 (M2F): H07-02 (Master), H7-06 (Slave 1), H7-10 (Slave 2)
CHECK 17
CHECK 17