E19 Indoor Unit Operation Check - Mitsubishi Electric FDF100VSXVD Technical Manual

Error code
E19
Remote controller:
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:
L E D G r een Red
Indoor
Stays OFF
Outdoor
5. Troubleshooting
Diagnosis
E19 occurs
when the power ON
Is SW7-1
on the indoor control
PCB ON ?
- 171
Content
Indoor unit operation check
NO
YES
-
'11 • PAC-T-160
Countermeasure
Defective indoor control
PCB (Defective SW7)
Replace
Turn SW7-1 on the indoor
control PCB OFF and reset
the power