Reverse Phase - Daikin Sky Air R-407C Service Manual

ESIE02–01
4.3 Reverse Phase (U1)
U1
Error code
This error code is only for 3-phase equipment.
LED indication The table below shows the LED indication.
Operation
Normal
Malfunctioning
Error generation The error is generated when the difference between phase L1 and L3 is not 240˚. The illustration below
shows the 3-phase network.
Causes The possible causes are:
Part 3 – Troubleshooting
HAP (green)
240˚
L1
90 120
Malfunctioning power supply wiring connection
Broken or disconnected power supply wiring
Malfunctioning outdoor unit PCB
H1P (red)
6
6
L2 L3
180 240 270 360
L1
120˚
L3 L2
240˚
Error Codes: System Malfunctions
H2P (red)
8 8
8 7
1
3 3
4
5
3–55