Branch Provider (Bp) Unit - Daikin RMXS-L Series Service Manual

Troubleshooting with LED
1.2

Branch Provider (BP) Unit

i
Green : Blinks in normal condition
Red : OFF in normal condition
BP Unit LED Indication
Green
A 1 2
j h h
j i h
j i i
j i h
i
— —
h
— —
Note: Turn the power off then on again. If the LED display recurs, the BP unit PCB is defective.
143
h j
: ON, : OFF, : Blinks, —: No matter
Red
3 4
h h
Normal condition
h h
Defective electronic expansion valve or anti-icing control in non-operating
indoor unit
h h
Defective thermistor
i i
Freeze-up protection control in operating indoor unit or standby indoor unit
— — Defective BP unit PCB (See note.)
— — Power supply abnormality (See note.)
Description
LEDA (H1P)
LED1 (H2P)
LED2 (H3P)
LED3 (H4P)
LED4 (H5P)
SiUS181305E
(R19090)
Troubleshooting