Daikin SkyAir RZR-P Series Service Manual page 174

Troubleshooting by Remote Controller
B
Service Diagnosis
A
Check the resistance value
of the outdoor unit fan motor.
Is the
resistance value of the
outdoor unit fan motor
normal?
YES
Does the fuse (F6U)
have continuity?
YES
Check the fan speed pulse.
Is the output
voltage normal?
YES
After turning OFF the power
supply, correctly insert the
connector of the fan motor
and then restore the power.
U4
Does " "
error reoccur?
NO
NO
NO
NO
YES
Does error
U4 UF
" " or " " reoccur?
NO
Replace the outdoor unit
fan motor.
Replace the fuse.
Replace the outdoor unit
inverter PCB.
Replace the outdoor unit
inverter PCB.
After turning OFF the power supply,
correctly insert the connector of the
fan motor and then restore the power.
YES
Replace the indoor unit
PCB.
External factor (Noise,
etc.)
SiUS281117
167