How to Repair Solar Inverter and charger 5KVA/4000 Watt with fault code 03

INVERTER CHARGER
Model Name: 5kva - 48
Inverter Mode
Rated Power 5000 VA / 4000 W
Solar Charger Mode
Rated Current 60 A
-----------------------------------
Fault Code : 03
Fault event : Battery voltage is too high
Some causes of Fault 03
1-Measurement system failure
2-Dc battery voltage is too high (by user)
3-The entry of liquids or insects into the inverter causes a failure and a short circuit of the measuring circuit


00:00 testing and showing fault 03
00:19 Fault reference code
00:31 disassembly and general check for the main board
02:01 Check (buck mosfet’s and diode, battery side components, the dc-bus capacitors)
03:54 return on out of cover (burning smell and overheating of power supply elements)
04:56 check and replacement mosfet’s drivers transistors (2SC2655,2SA1020)
06:31 testing before final assembly
08:09 final assembly and test

#Inverter
#solar
#voltronic
#Fault
#انفيرتر
#فولترونيك
#فولترونك