Mitsubishi Electric SRK100VNPZJX, Техническое руководство

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366
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'12 • PAC-T-174
None
Power supply system error
(Power supply to indoor control PCB)
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Is
AC220/240V
detected between 1 and
2 on the terminal block
of indoor
unit?
NO
NO Are fuses OK?
YES
YES
YES
NO
Is the
check of resistance between
�
-
�
of CNW0
OK?
Note(1) FDT, FDUM : F1, F2
FDTC, FDF : F200, F201
FDEN, FDU : Fuse between wires.
NO
Is the
checked result
of resistance of FM,
etc OK?
NO
NO
(2)
(1)
Note (2)
�
for GND
Is DC5V
detected between
�
-
�
of CNW1?
NO
Is
AC380/415V
for 3-phase unit detected
between 1, 2 and 3 on the teminal
block of outdoor unit or is AC220/240V
for 1-phase unit detected between
1 and 2 on the terminal
block of outdoor
unit?
YES
YES
YES
YES
Is JX1 open?
Defective outdoor control
PCB (Noise filter)
Misconnection or breakage
of connecting wires
Defective indoor power
PCB
➞
Replace.
Replace FM, etc.
Replace fuse.
Defective indoor power
PCB
➞
Replace.
Open JX1.
Defective indoor control
PCB
➞
Replace.
2. Error detection method
3. Condition of Error displayed
4. Presumable cause
• Misconnection or breakage of
connecting wires
• Blown fuse
• Faulty transformer
• Faulty indoor control or
power PCB
• Broken harness
• Faulty outdoor control PCB
(Noise filter)
Note:
Error code
Remote controller:
LED Green Red
Indoor Stays OFF Stays OFF
Outdoor Stays OFF 2 times flash
Content