Daikin RXSQ24TAVJU Service Manual page 166

Troubleshooting by Error Code
Error code
Outdoor Unit L5
L8
L9
LC
P1
P4 (∗1)
U0 (∗1)
System
U2
U3
U4
U5
U8
U9
UA
UC (∗1)
UE
UF
UH
M1
M8
MA
MC
—
—
—
∗1. The system can keep operating, however, be sure to check and repair.
Notes:
∗2. The system may or may not continue operation depending on the conditions.
153
Operation
lamp
l
Inverter compressor instantaneous overcurrent
l
Inverter compressor overcurrent
l
Inverter compressor startup abnormality
l
Transmission error (between microcomputers on the outdoor main PCB)
l
Inverter circuit capacitor high voltage
k
Radiation fin thermistor abnormality
k
Refrigerant shortage
l
Power supply insufficient or instantaneous abnormality
l
Check operation not executed
l
Transmission error between indoor units and outdoor units
l
Transmission error between remote controller and indoor unit
l
Transmission error between main and sub remote controllers
l
Transmission error between indoor and outdoor units in the same system
l
Improper combination of indoor and outdoor units, indoor units and remote
controller
Incorrect gas furnace connecting number
Incorrect electric heater capacity setting
k
Address duplication of centralized controller
l
Transmission error between centralized controller and indoor unit
l
System not set
l
System abnormality, refrigerant system address undefined
Climate Talk communication system combination error (before initial setting for
communication completes)
Climate Talk communication system combination error (after initial setting for
communication completes)
l
Defective PCB
l
Transmission error (Between centralized controllers)
l
Poor centralized controller combination
l
Address duplication, poor setting
l
Operation lamp blinking
l
Central control indicator lamp blinking (One blink)
l
Central control indicator lamp blinking (Two blinks)
Description
SiUS331708EA
k: ON h: OFF l: Blink
Reference
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Service Diagnosis