Mitsubishi Heavy Industries FDT45KXE6 User Manual

Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
–
341
–
E19
Indoor unit operation check,
drain motor check setting error
Keeps flashing 1 time flash
Keeps flashing Stays Off
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Defective indoor control
PCB (Defective SW7)

Replace
Turn SW7-1 on the indoor
control PCB OFF and reset
the power
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:
Indoor operation check/drain pump check mode
If the power is ON after SW7-1ON, indoor operation check/drain pump check mode can be established.
1) When the communication between remote controller and indoor PCB is established 15 seconds after power ON, it goes
to indoor operation check.
2) When the communication between remote controller and indoor PCB is not established, it goes to drain pump check (CnB
connector should be open before power ON)
Is SW7-1
on the indoor control
PCB ON?
E19 occurs when the
power ON
NO
YES

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English