Daikin VRV X RXQ6-48ANR Series, Service Manual, Page: 216 / 297

Troubleshooting by Error Code SiME341909EA
210 Part 6 Service Diagnosis
5.34 Outdoor Fan PCB Abnormality
Applicable
Models
All outdoor unit models
Error Code
H7
Method of Error
Detection
Detect according to values detected with current sensor.
Error Decision
Conditions
When the current sensor is abnormal.
Supposed
Causes
 Disconnection/Short circuit in fan motor leads or disconnection of connector
 Defective fan PCB (A4P, A7P)
Troubleshooting
Replace the defective fan motor.
NO
YES
Check for fan motor applicable to the error code H7 while in monitor mode.
• Sub code
Fan PCB (A7P): H07-21 (Master), H7-23 (Slave 1), H7-25 (Slave 2)
Fan PCB (A4P): H07-22 (Master), H7-24 (Slave 1), H7-26 (Slave 2)
Replace the defective fan PCB.
RXQ6/8AR: A4P
RXQ10-16AR: A4P, A7P
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is
resistance
between Vcc-UVW
and between GND-UVW
of the fan motor lead
in balance?
Turn OFF the power supply
and wait for 10 minutes.