Daikin VRV III-S RXYMQ36 48PVJU, Service Manual

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SiUS34-907 Troubleshooting by Indication on the Remote Controller
Troubleshooting 139
Troubleshooting
Caution
Be s u re to t u rn off the po w er s w itch b efore connecting or disconnecting the connector, or parts may b e damaged.
4HP ~ 5HP class models ha v e 2 fans.
Check electric motor (electric motor 1 or 2) corresponding to malf u nction code
“E7” in the monitor mode of o u tdoor u nit PCB. (Refer to P.104, 105 for ho w to
check)
Check in the monitor mode
Check if
any foreign s ub stances
aro u nd the fan.
Remo v e the foreign s ub stances.
YES
Fan motor 1: X106A of PCB
Fan motor 2: X107A of PCB
N O
C u t the po w er s u pply OFF and w ait for 10 min u tes.
Check the connection status of the connectors
Check
if any connector is
disconnected.
Insert the connector.
YES
Fan motor 1: Both po w er s u pply w ire and signal w ire are all w hite.
Fan motor 2: Both po w er s u pply w ire and signal w ire are red in the PCB side
and w hite in the motor side.
N O
Relay
connectors ha v e any
connection error.
Correct the connection of the
relay connectors.
YES
N O
A