Daikin RXYQ96PYDN Service Manual page 383

Troubleshooting by Indication on the Remote Controller
Troubleshooting
368
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check in the monitor mode
REYQ72~120PYDN models have 2 fans.
Check electric motor (electric motor 1 or 2) corresponding
to malfunction code "E7" in the monitor mode of outdoor unit
PC board. (Refer to P.334 - P.335 for how to check)
Cut the power supply OFF and wait for 10 minutes.
Check if
any foreign substances
around the fan.
Check the connection status of the connectors
Fan motor 1: relay connector or X1A, X2A (X501A,
X502A) of compressor inverter PC board.
Fan motor 2: relay connector or X1A, X2A (X501A,
X502A) of fan inverter PC board.
Check
if any connector is
disconnected.
Check the color of relay connectors
Fan motor 1: Both power supply wire and signal wire are
all white.
Fan motor 2: Both power supply wire and signal wire are
red in the PC board side
Relay
connectors have
any connection
RXYQ
6ton
10ton
REMQ
(X502A)
(X501A)
6ton
Z5C
10ton
YES
NO
YES
NO
and white in the motor side.
YES
error.
NO
A
REYQ
6ton
10ton
(X502A)
(X501A)
Z6C
SiUS34-801A_b
Remove the foreign substances.
Insert the connector.
Correct the connection of the relay
connectors.
Z7C
Troubleshooting