Daikin R42NUY2S - Page 390

Troubleshooting by Remote Controller Si20-701_B
383
NO (ON or OFF)
NO
YES
YES
Replace the
indoor unit PCB.
Resets normally.
External factor
(Noise, etc.).
Is the
error displayed
constantly?
Is H1P blinking?
Is H1P blinking?
Is H1P blinking?
Is H1P ON?
YES
NO
NO
YES
Replace the
indoor unit PCB.
Turn OFF the power supply
and turn the power ON.
Turn OFF the power
supply, disconnect the
No.2 indoor-outdoor
transmission wire, and
turn power supply restart.
NO (OFF)
YES
A
Replace the
outdoor unit PCB
or correct power
supply system.
Replace the
indoor unit PCB.
Resets normal
External factor
(Noise, etc.)