Mitsubishi Electric SRK100VNPZJX, Техническое руководство

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396
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'12 • PAC-T-174
Error code
Remote controller:
LED Green Red
Outdoor control PCB
Outdoor inverter
PCB
1 time flash Keeps flashing
Yellow LED or Red LED Green LED
Indoor control PCB Stays OFF Keeps flashing
Keeps flashing
Content
1 time flash or 5 times flash
E42
Current cut (1/2)
1. Applicable model
5. Troubleshooting
All models Diagnosis Countermeasure
Is the
Power supply
voltage OK?
YES
Are the
service valves
opened?
NO
To next page.
YES
Is the
high pressure
during operation
OK?
YES
Is the
checked result of
insulation resistance and
coil resistance (1) of
compressor motor
OK?
YES
(1) 0.293
Ω
or more at 20°C (Models FDC100
-
140VN)
1.172
Ω
or more at 20°C (Models FDC100
-
140VS)
0.334
Ω
or more at 20°C (Models FDC200, 250)
NO
NO
NO
Check power supply.
Open the valves.
Check refrigerant amount
and refregerant circuit
* In case of transitional
increase of high pressure
and/or test run, several
times restarting may
recover it, because liquid
refrigerant (migrated)
in the compresser is
discharged from the
compressor.
Replace compressor.
2. Error detection method
In order to prevent from
overcurrent of inverter,
if the current exceeds the
specifications, it makes the
compressor stopping.
3. Condition of Error displayed
• If the output current of inveter
exceeds the specifications,
it makes the compressor
stopping.
• After 3-minute delay, the
compressor restarts, but if this
amonaly occurs 4 times within
30 minute after the intial
detection.
4. Presumable cause
• The valves closed
• Faulty power supply
• Insufficient refrigerant amount
• Faulty compressor
• Faulty power transistor
module
Note: