Mitsubishi Heavy Industries FDE112KXE6A, Руководство по обслуживанию

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Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
–
97
–
E59
E59-1, 2 *1
Compressor startup
failure (CM1,CM2)
Keeps flashing Stays Off
Keeps flashing *2
1. Applicable model
5. Troubleshooting
Outdoor unit
Diagnosis Countermeasure
NO
NO
NO
YES
YES
YES
YES
Is
power supply voltage
OK?
specification of power supply
voltage
380/415V
Is the
pressure equalized
during 3-minute delay
before startup?
Is there
any loose connection
or breakage of cable
connected to the terminal
of the compressor?
Under the condition of no pressure difference,
startup by test operation mode
Check the data for 30 minutes before stopping
Save data for 30 minutes before stopping in Mente PC
Is it
the unit with one
compressor
?
Can startup?
Can startup?
Is there
any output from
inverter?
Is the
compressor failed to startup
switched?
YES YES
YES
NO
NO
YES
YES (Both of 2 compressors can)
(Only one
compressor
can startup)
Interchange the
cables between
inverter and
compressor, and
try to startup
NO (No compressor can)
NO NO
Check and save the data of
operating conditions
Check the power supply
voltage and correct it
Check the version No. of
software (Is it latest?)
Check whether the solenoid
valve SV6 at the exit of oil
separator is open during
compressor stopping.
(Is the pressure equalized?)
Replace the cable
(If there is a problem on
the terminal of compressor,
replace the compressor
Wait and see
Replace compressor
Replace inverter PCB or
power transistor module.
(Check 15V on the outdoor
control PCB and check
power transistor with inverter
checker.
If the power transistor is
OK, replace inverter PCB)
Replace compressor
Wait and see
Replace compressor
Replace inverter PCB or
power transistor module.
(Check 15V on the outdoor
control PCB and check power
transistor by inverter checker.
If the power transistor is
OK, replace inverter PCB)
2. Error detection method
When it fails to change over to
the operation for rotor position
detection of compressor motor
(If the compressor speed cannot
increase 11Hz or higher)
3. Condition of error displayed
If the compressor fails to startup
for 20 times (10 patterns x 2
times) continuously.
4. Presumable cause
• Anomalous voltage of power
supply
• Anomalous components for
refrigerant circuit
• Inverter PCB anomaly
• Loose connection of
connector or cable
• Compressor anomaly (Motor
or bearing)
Note: If the error does not recur, connect the Mente PC and continue to collect data.
*1 E59-1: CM1, E59-2: CM2 *2 E59-1: 1 time flash, E59-2: 2 time flash