Sorry for long delay.
The MPPT's due bad / wrong connections went on fire.
First of all one of MPPT's were over loaded and once one of MPPT's goes on fire then 2nd got power of all panels ( !! 15 PANELS OF 250W !! )
Person who connected all panels and system did not put fuses and all on system as well.
PANELS WERE CONNECTED PARALEL + SERIES / MIXED SERIES.
System was just ticking bomb!
It was my plan to 'fix' connections across current system and make new lines but i got new wires and fuses two days after MPPT's broke. (i was waiting for supply few weeks)
Inverter is fine.
MPPT'S WERE OVER LOADED FOR OVER 2 YEARS.
Now i have made 5 new strings, 3 panels per string, Ordered 3 MPPT's 150/35 to get it sorted as should be.
Huge thanks to