Mitsubishi Heavy Industries FDT28KXE6A Service Manual page 81

Error code
E32
Remote controller:
E32
7-segment display:
1. Applicable model
Outdoor unit
2. Error detection method
By Checking the power supply
voltage at primary side of the
outdoor control PCB
(Check only L3 phase)
3. Condition of error displayed
When the power supply voltage
between L1-L3 or L2-L3
becomes 0V and/or the current
of L3 decrease to 0A
4. Presumable cause
• Anomalous power supply at
primary side
• Outdoor control PCB
anomaly.
Note:
LED Green Red
Keeps flashing Stays Off
Indoor
Keeps flashing 1 time flash
Outdoor
5. Troubleshooting
Diagnosis
Save data for 30 minutes before
stopping in Mente PC
Is the power
supply voltage (between phases) at
the primary side OK?.
YES
Reset the power supply
and restart operation.
Does E32 recur?
79
–
Content
Open L3 Phase on
power supply at primary side
NO
YES
NO
–
Countermeasure
Check and save the data of
operating condition.
Check the conditions
whether it occurs
immediately after the
power on or during
operation or stopping.
(It will be useful to
persuade the customer why
an improvement of power
supply is required by
showing these data)
Propose an improvement to
the customer.
Check it, as much as
possible, under the
operating conditions for
30 minutes before error
occurred.
Replace outdoor control
PCB.
Wait and see without taking
any action.