Mitsubishi Heavy Industries FDT90VNPWVH Service Manual page 89

Error code
E14
Remote control:
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 control wire
• Defective remote control wire
connection
• Defective indoor unit control
PCB
Note:
LED Green Red
Keeps flashing 3-time flash
Indoor
5. Troubleshooting
Diagnosis
Is it
OK the unit
address setting for master
and slave indoor
units?
YES
Isn't
the remote
control wiring between
indoor units
defective?
NO
Is it
restored by resetting the
power source?
Note (1) Set dip switches SW5-1 and SW5-2 as shown in the following table.
(Factory default setting – "Master")
Master
SW5-1 OFF
DIP
switch
SW5-2 OFF
88
-
Content
Communication error
between master and slave indoor units
NO
YES
NO
YES
Indoor unit
Slave-a Slave-b
OFF ON
ON OFF
-
'19 • PAC-SM-334
Countermeasure
Correct unit address setting.
Correct wiring.
Defective indoor unit
control PCB Replace.
• Malfunction by noise
• Check surrounding
environment.