Mitsubishi Heavy Industries FDT45KXE6 User Manual

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333
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Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E5
Communication error during operation
Keeps flashing *See below
Keeps flashing Stays Off
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Does the
remote controller LCD
return to normal?
Power supply reset
YES
NO
* In case that indoor red LED stays OFF
Is the
connection of signal wires
at the outdoor unit side
OK?
Is the
connection of signal wires
between indoor-outdoor units
OK?
Does the
remote controller LCD
return to normal?
Note (1) Check faulty connections (disconnection,
looseness) on the outdoor unit terminal block.
Power supply reset
Note (2) Check faulty connection or breakage of
signal wires between indoor-outdoor units.
YES
NO
YES
NO
YES
NO
* In case of 2 times flash on indoor red LED
Repair signal wires.
Repair signal wires.
To the diagnosis of
“Checking indoor unit”
Unit is normal.
(Malfunction by temporary
noise, etc.)
Defective outdoor control
PCB (Defective network
communication circuit)

Replace.
Unit is normal.
(Malfunction by temporary
noise, etc.)
2. Error detection method
When the communication
between indoor-outdoor units is
disable for more than 2 minutes
3 . Condition of error displayed
When it detects the above
during operation.
4. Presumable cause
• Unit address No. setting error
• Controller wire disconnection
• Faulty remote controller wire
connection
• Defective indoor control PCB
Note:
If the pump down switch is pressed, communication between indoor-outdoor is cancelled and "Communication error E5"
is displayed on the remote controller but this is normal.

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English