Mitsubishi Electric FDT125VNVF Technical Manual page 432

Error code
E14
Remote controller:
1. Applicable model
All models
2. Error detection method
When communication error
between master and slave indoor
units occurs
3. Condition of Error displayed
Same as above
4. Presumable cause
• Unit address setting error
• Broken remote controller wire
• Defective remote controller
wire connection
• Broken interface kit wire
• Defective interface kit wire
connection
• Defective indoor control PCB
Note:
RUN light TIMER light
Indoor
– –
display
Green LED Red LED
Outdoor
control PCB
Keeps flashing Stays OFF
5. Troubleshooting
Diagnosis
Is it
OK the unit
address setting for master
and slave interface
kit?
YES
Isn't
the remote
controller wiring between
interface kit
defective?
NO
Isn't
the interface
kit wiring between
indoor units
defective?
NO
Is it
restored by resetting the
power supply?
Note (1) Set dip switches SW3-1 and SW3-2 as shown in the following table.
(Factory default setting – "Master")
Master
SW3-1 OFF
Dip
switch
SW3-2 OFF
431 431
- -
Content
Communication error
between master and slave indoor units
NO
YES
YES
NO
YES
Interface kit
Slave1 Slave2
OFF ON
ON OFF
- -
'12 • PAC-T-174
Countermeasure
Correct unit address setting.
Correct wiring.
Correct wiring.
Defective indoor control
PCB Replace.
• Malfunction by noise
• Check surrounding
environment.