Hisense AVWT-192FFFH User Manual

131
Troubleshooting
Is LED1 (red) and
LED2 (red) on SW
BOX PCB ON?
Is LED4 (green) on
SW BOX PCB
flashing more than
once in 10 seconds?
Multiple branch type,
check LED4 to LED7.*
Is PCB setting
Non-pole operating.
Is LED3 (yellow) on
indoor unit PCB ON?
Does alarm occur with all
indoor units?
Faulty O.U. PCB
Is LED3 (yellow) on indoor
unit PCB flashing more than
once in 10 seconds?
Is LED3 (yellow)
ON even if #1 and #2
on TB2 is removed?
Is voltage between “L1”
and “N” of PCN1 on SW
BOX PCB 220V?
Is the fuse for SW BOX
Check SW BOX wiring
Replace fuse
Faulty SW BOX PCB
Check wiring between indoor
unit and SW BOX
Set it correctly
Set it correctly
Faulty indoor unit PCB
Faulty I.U. PCB
Check other indoor units
Does refrigerant system No.
setting between outdoor unit
and indoor unit correspond?
(O.U.: DSW4 and RSW1)
(I.U.: DSW5 and RSW2)
Is LED3 (yellow) on
SW BOX PCB
flashing more than
once in 10 seconds?
Check wiring between
outdoor unit and SW
BOX
Check wiring between
outdoor unit and indoor units
or fuse (EF) for indoor unit /
outdoor unit PCB
Indoor
Unit
SW BOX
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
PCB melted?
No
LED for the port that is set to unused does not flash*

Hisense AVWT-192FFFH Specifications

General

Brand	Hisense
Model	AVWT-192FFFH
Category	Air Conditioner
Language	English