inverter fuses blown

[Bala]

Have you had rain in the days prior to this happening?

[almac]

When inverters die, it usually involves the output transistors shorting. Since they are arranged as a bi-polar pairs this puts a dead short across the DC power and kaboom. Being a switcher type circuit running at elevated frequencies, usually other components get taken out as well, and if you don't repair all the damaged parts, it goes blows it all up again when powered. Very difficult to repair I'm sorry to report. You can try testing and replacing all the big transistors (the ones mounted to the heat sinks) but usually hard to find all the damaged parts.

i thought just 2 fuses were blown but in fact all 6 were blown. i replaced 2 fuses reconnected and they blew again. should i try replacing all 6 fuses or would i be wasting my time.. and fuses

[almac]

ok, thanks, so this is just a cheap inverter about $200 off ebay. when i took off the bottom plate there was a puddle of brown goo. would that have leaked out from the capacitors?

[solarix]

When inverters die, it usually involves the output transistors shorting. Since they are arranged as a bi-polar pairs this puts a dead short across the DC power and kaboom. Being a switcher type circuit running at elevated frequencies, usually other components get taken out as well, and if you don't repair all the damaged parts, it goes blows it all up again when powered. Very difficult to repair I'm sorry to report. You can try testing and replacing all the big transistors (the ones mounted to the heat sinks) but usually hard to find all the damaged parts.

[almac]

this is a pure sine wave inverter, would a simple double adaptor / splitter be ok?

[Mike90250]

And that's the problem. Surge strips should not be used with mod-sine inverters. ModSine has high peaks that activate the MOV's in the strip, and they are constantly being degraded, and eventually fail.

[almac]

i might have discovered the answer to this. some old power boards that were plugged in to the lead from the inverter. my backup inverter was tripping into overload till i unplugged these power boards. DSCN0399.JPG

[almac]

1700w inverter was dead, upon removal of cover 2 blade fuses were blown. what might be the cause? the inverter had no load on it when this happenedDSCN0398.JPG