As problem of title, I have received the problem report from quality assurance department.
I would like to inform about problem report detail.
- Problem detail
Product : AOTG30LFTC(T014795)
Problem contents :
Could not do turned on the product, technician found that the fuse holder and fuse are nothing on the outdoor unit. - Analysis result
)1 Check the actual sample unit.
Photo 1 ; Fuse holder and fuse(TLC 25A and FSV 10V) was not attached.
Photo 2 ; There was scar which may get when screw have been connected.
Therefore, fuse holder was attached before.
Photo 3 ; There was scare which may get when fuse wire are connected.
(as to correct wiring diagram, please refer to attached “GS14-020 Appendix 1”)
Photo 4 ; The ruins of a file on the PCB
Photo 5 ; There was not fuse(FSV 10A)
Photo 6 ; Fuse cover and fuse(FSV10A) are fallen.
)2 Operating confirmation in factory line
after fuse holder , fuse(TLC 25A) and fuse(FSV10A) are attached, sample unit operated correctly.
)3 Checked the manufactured record
Based on manufactured record, any problem was nothing when this product was manifested. (GS14-020 Appendix 2) - Speculation of this result’s cause.
FGL guess;
“Fuse(TLC 25A) was nothing”, and, “Fuse wire are connected to terminal directly”, and “indoor unit turned on.”
As the result, fuse(FSV 10A) became short.
it reproduced by replication test.(GS14-020 Appendix 3)
FGL’s opinion is that it is not occurred at factory.