Daikin VRV IV-S RXTQ-TAVJU Series Service Manual page 154

Troubleshooting by Error Code
∗1: Check the following connectors.
Note:
∗2. Resistance measuring points and judgment criteria.
141
Model
FXFQ-T
FXFQ09-30P
FXFQ36/48P
FXUQ
FXEQ
FXMQ07-12PB
FXAQ
1 White FG
2 Orange Vsp
3 Brown Vcc
4 Blue GND
5 — —
6 — —
7 Red Vdc
Connector
X20A, Relay connector
X20A, Relay connector
X20A
X20A, Relay connector
X20A
X8A
X20A
1 — —
2 White PG
3 Orange Vsp
4 Brown Vcc
5 Blue GND
6 — —
7 — —
8 Red Vm
SiUS331604E
1 2 3 4 5
— Vcc
— FG Vsp
Vdc GND —
1 2 3
Judgment criteria
Criteria
Measuring point
FG-GND 1 MΩ or more
Vsp-GND 100 kΩ or more
100 Ω or more
Vcc-GND
Vdc-GND 100 kΩ or more
Service Diagnosis