E19 Indoor Unit Operation Check - Mitsubishi Heavy Industries FDT100VNP1VF2 Technical Manual

Error code
E19
Remote control:
1. Applicable model
All models
2. Error detection method
After indoor operation check,
when the communication
between indoor and outdoor
unit is established and SW7-1 is
still kept ON.
3. Condition of error displayed
Same as above
4. Presumable cause
Mistake in SW7-1 setting
(Due to forgetting to turn OFF
SW7-1 after indoor operation
check)
Note:
LED Green Red
Keeps flashing 1-time flash
Indoor
5. Troubleshooting
Diagnosis
E19 occurs
when the power ON
Is SW7-1
on the indoor control
PCB ON ?
YES
183
-
Content
Indoor unit operation check
NO
-
'16 • PAC-T-240
Countermeasure
Defective indoor control
PCB (Defective SW7)
➞ Replace
Turn SW7-1 on the indoor
control PCB OFF and reset
the power