Daikin VRV RXYQ72-384XAYCA, Service Manual

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Troubleshooting by Error Code SiUS342004EB
235 Part 6 Service Diagnosis
Note(s)
Reference
Troubleshooting
 1: Check the following connectors.
CHECK 17 Refer to page 374.
YES
Is the connector for
the fan motor properly
connected to the indoor unit
PCB? ( 1)
Remove the foreign matter.
YES
Properly connect the connector.
NO
NO
YES
By disconnecting
the connector for the fan
motor from the indoor unit control
PCB, the fan can be lightly
rotated by
hand.
NO
NO
YES
Are there any foreign
matter around the fan?
YES
Is the resistance
between the pins more than the
judgment criteria?
Disconnect the connector from the fan
motor, and then make measurement
of resistance between pins.
Turn OFF the power supply, and then
wait for a period of 10 minutes.
Replace the indoor unit control
PCB (A1P).
Replace the indoor fan motor
(M1F).
Replace the indoor fan motor
(M1F).
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
CHECK 17
Model Connector PCB
FXFQ-T X20A, Relay connector A1P
FXZQ-TA X20A, Relay connector A1P
FXZQ-TB X20A, Relay connector A1P
FXUQ-P X20A, Relay connector A1P
FXUQ-PA X20A, Relay connector A1P
FXEQ-P X20A A1P
FXSQ05-48TA X8A A2P
FXSQ05-48TB X8A A2P
FXMQ07-12PB X8A A2P
FXMQ15-24TB X8A A2P
FXAQ-P X20A A1P