Daikin VRV III-S RXYMQ36 48PVJU, Service Manual

Page: 126 / 264

SiUS34-907 Troubleshooting by Indication on the Remote Controller
Troubleshooting 117
Troubleshooting
T u rn off the po w er and w ait for 10
min u tes.
Remo v e the foreign matter.
There is a
foreign matter aro u nd
the fan.
YES
Connect correctly.
The fan
motor connectors
(X1A and X2A ) of the fan
PCB (A2P) are
disconnected.
YES
Connect correctly.
The
connectors b et w een the
indoor u nit PCB (A1P) and the fan
PCB (A2P) are
disconnected.
YES
N O
N O
Replace the fan PCB (A2P).
The f u se
(F3U, w hite) on the fan
PCB (A2P) has no
contin u ity.
N O
N O
Replace the fan motor.
The fan
can b e mo v ed lightly b y
hand after the fan motor connector
of the fan PCB (A2P) is
remo v ed.
N O
YES
Replace the fan motor.
The resistance
b et w een the po w er w ire
terminals of the fan motor and
motor frame (metal part)
is 1 M
W
or
b elo w .
YES
YES
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.
Remo v e the po w er w ire connector
from the fan motor and meas u re the
resistance b et w een U and V , V and W ,
and W and U phases (*1).
N O
A