U1 Reverse Phase - Daikin R71FUV1 Service Manual

Si20-701_B
U1
3.86
Remote Controller Display
U1
Applicable Models
RY-F, R(Y)-G/GA/KU
(3-phase equipment only)
Method of Error Detection
Reverse phase detection circuit detects the phase of
each phase and determines whether it is normal phase,
reverse phase or lack of phase.
Supposed Causes
Defective power supply wiring connection
Power supply wiring is broken or disconnected.
Defective outdoor unit PCB
Troubleshooting
Caution
Turn OFF the power
supply and turn the power
ON.
The error is
displayed again.
YES
358
Reverse Phase
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
Troubleshooting by Remote Controller
External factor
(Noise, etc.)
Replace the
outdoor unit
PCB.