converter problem

[mhd712]

2003 Dolphin. Converter has two 30 amp fuses at end of unit. Both blown. Each time I try to insert new one it immediately blows. Am currently hooked to shore power and everything working except monitor panel shows coach batteries down (red). Any ideas?

[mgscott4]

Disconnect the the 2 output wires and try 2 more fuses, if they blow, your converters bad.

[wa8yxm]

First... DO NOT replace one at a time.

UNPLUG first. then replace both then plug back in]

but even before you do that think about the job title those fuses have "Reverse Polarity Fuses"

There are 2.5 things that will pop 'em like flashbulbs.

1: Batteries in backwards
2: Shorted converter (Kind of rare)
.5 In a very few cases... If you have UPGRADED your batteries, SOME converters may be able to push enough current to pop 'em. IF the batteries are below 50% state of charge. Mine has a circuit breaker and it's been known to break.

[mhd712]

Thanks for the tips. Looks like it is a bad converter. To shop next week with hopes of being covered under my warranty policy.