Indoor Unit Operation Check, Drain Motor Check Setting Error - Mitsubishi Heavy Industries FDT Series 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:
LED Green Red
Indoor
Stays OFF
Outdoor
5. Troubleshooting
Diagnosis
E19 occurs
when the power ON
Is SW7-1
on the indoor control
PCB ON ?
YES
- 393
Content
Indoor unit operation check,
drain motor check setting error
NO
-
'12 • PAC-T-173
Countermeasure
Defective indoor control
PCB (Defective SW7)
Replace
Turn SW7-1 on the indoor
control PCB OFF and reset
the power