Please find attached pictures after opened the Gray cover of BM4434 .
The control unit was took out in order to get pictures under the control module , because there are some burn area too.
So, we need the new BM4434 (maybe from Europe or China) , kindly let me know the delivery schedule when you got information.
For the BM4454, please check if we need to get the new one or Mr. Tom can test it or do something.
Mr.Tom will bring all the 3 units : 1 x BM4434 , old and new unit of BM4454 back to office.
They need to get permission from you if need to open the cover of the new BM4454.
Mr.Tom also confirm that the wiring connection are correct. Same as Mr.Komsan ENGEL engineer.
We are thinking another possible cause that this BM4434 may had some damaged since the first time on 2 April. Then I make big short circuit when power on it again. What do you think?