Mitsubishi Heavy Industries FDT45KXE6 User Manual

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332
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Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E3/5
-
Outdoor unit signal line error
Keeps flashing 2 times flash
Keeps flashing Stays Off
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Is the
indoor unit power
supply OK?
Is the
superlink communication
wire connection
OK?
Reset the power supply and restart.
E3 is a communication error that occurs when communication is not
established at all between indoor/outdoor units. Once the communication
is established between indoor/outdoor units, it changes to E5.
In both cases, check signal line wired locally.
YES
NO
Is the
outdoor unit address
set on the indoor unit
OK?
YES
NO
Is the LED
of indoor control
PCB OK?
YES
NO
Is protective
fuse for the super link
circuit blown?
NO
Does E3/E5 occurs?
YES
YES
YES
NO
NO
Temporary malfunction by
noise. Identify and correct
the source of noise.
Change to spare circuit.
Replace indoor control
PCB
Correct.
Correct.
Correct.
Replace outdoor control
PCB
2. Error detection method
No outdoor unit exists in the
same superlink system line.
3 . Condition of error displayed
Same as above
4. Presumable cause
➀ Power to the indoor unit is
not turned on.
➁ Unmatch of pairing or pairing
mismatch between indoor/
outdoor units
➂ Defective indoor control PCB
➃ Defective outdoor control
PCB
➄ Missing local wiring
Note:

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English