Active Filter Voltage Error - Mitsubishi Heavy Industries FDTC40ZSXVH Service Manual

Error code
Remote control: E47
1. Applicable model
All models
2. Error detection method
Error is displayed if the
converter voltage exceeds target
voltage (3 times within 20
minutes). Remote control may
be set after 3-minute delay.
Error is displayed if the
converter voltage is lower
than DC210V (1-time within
5 seconds after power ON)
3. Condition of error displayed
Same as above
4. Presumable cause
• Defective outdoor unit PCB
• Dust on outdoor unit PCB
• Anomalous power source
Note:
LED Green Red
Indoor Keeps flashing Stays OFF
2-time flash
Outdoor
5. Troubleshooting
Diagnosis
Is the power source normal?
YES
Is voltage
within the specified range?
YES
Check
soldered surfaces on the
outdoor unit PCB for foreign matter
like dust, fouling,
etc.
• If the overvoltage (DC voltage is higher than 400V) occurs,
Red LED flashes 1-time.
82
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Content
Active filter voltage error
NO
NO
NO
YES
-
'18 • PAC-SM-297
Countermeasure
Restore normal condition.
Restore normal condition.
Remove foreign matter like
dust, fouling, etc.
Defective outdoor unit
PCB ➞ Replace.