Daikin R71FUV1 Service Manual page 211

Si20-701_B
Troubleshooting
Caution
Turn OFF the power
supply and turn the power
ON.
NO
RZR, RZQG
CHECK 8
204
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
The
error is displayed
again.
YES
Is the
electronic
expansion valve
connector properly
connected to the
outdoor unit
PCB?
YES
Is the coil
resistance of the
electronic expansion
valve normal?
CHECK 8
YES
RZQ(S)
Is there
difference in
temperature before
and after electronic
expansion valve
(Y1E) during
operation?
YES
A
Refer to P.473.
Troubleshooting by Remote Controller
NO
NO
NO
Connect
properly.
Replace the
electronic
expansion valve
coil.
Replace the body
of the electronic
expansion valve
(Y1E).