Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 231

Error code
Remote control: E47
Outdoor control PCB
1. Applicable model
Models FDC
2. Error detection method
In order to avoid an unexpected
trouble, if the protective circuit
defect unexpected voltage,
current and movement of the
power element, it makes the
compressor stopping.
3. Condition of error displayed
• If the anomaly occurs,
it makes the compressor
stopping.
• After 3-minute delay, the
compressor restarts
f this anomaly occurs 4
times within 30 minutes or
continues for 15 minutes
contin ously.
4. Presumable cause
• Defective control PCB
• Defective reactor PCB
Note:
LED Green
Indoor Keeps flashing
Keeps flashing
5. Troubleshooting
power s
voltage OK?
Are wires
connected properly
between the reactor PCB
(P 4) and the control
PCB (P B1) ?
Change the control PCB (P B1)
Does it become nomal?
Red Content
Stays OFF
(Models FDC100-140VNA only)
1-time flash
Diagnosis
Is the
ource
YES
YES
230
- -
'19 • PAC-T-327
PCB A/F module anomaly
Countermeasure
Check power source.
NO
Correct wires.
NO
Change the reactor PCB
NO
(P B4) and the connection
wire between the reactor
PCB (P B4) and the
control PCB (P B1)