Forum Discussion
time2roll
Jul 23, 2020Nomad
The reverse polarity fuses are just an attempt to protect the converter, nothing else.
You may have had a few issues that happened in sequence that seem confusing when put together as one event. Replace the converter and battery with special care to verify polarity and get your RV back on the road.
The number on the black board googles into a ATWOOD CAMPER JACK REMOTE CONTROL UNIT 85439 for about $300. Good luck if magic smoke came from this unit. Test your jacks.

You may have had a few issues that happened in sequence that seem confusing when put together as one event. Replace the converter and battery with special care to verify polarity and get your RV back on the road.
The number on the black board googles into a ATWOOD CAMPER JACK REMOTE CONTROL UNIT 85439 for about $300. Good luck if magic smoke came from this unit. Test your jacks.

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