Daikin VRVII Manual page 123

Troubleshooting
Caution
Check in the monitor mode
Check fan motor (fan motor 1 or 2) corresponding
to error code "E7" in the monitor mode of outdoor
unit PCB.
Turn the power supply OFF and wait for 10 minutes.
Check if
any foreign
substances around
the fan.
NO
Check the connection status of the connectors
Fan motor 1: relay connector or connectors of
compressor inverter PCB.
Fan motor 2: relay connector or connectors of
fan inverter PCB.
Check if
any connector is
disconnected.
NO
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 PCB side
motor side.
Relay
connectors
have any connection
error.
NO
A
118
Troubleshooting by Indication on the Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
YES
YES
and white in the
Remove the
foreign
substances.
Insert the
connector.
Correct the
connection of the
relay connectors.