Winch control box repair

Dunx

Dunx

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We have a single lewmar 48 electric winch on the boat which has stopped working. The fault seems to be in the ELS control box. The contactor in the box appears to work with energised suggesting the circuit board is the issue, I have replaced th deck switch. Does anyone have a contact for repair or refurbishment as £500 for a new box seems a bit steep. Thanks
 
I have the same issue. May I ask how you rectified the issue?

Thanks

Dunx said:
We have a single lewmar 48 electric winch on the boat which has stopped working. The fault seems to be in the ELS control box. The contactor in the box appears to work with energised suggesting the circuit board is the issue, I have replaced th deck switch. Does anyone have a contact for repair or refurbishment as £500 for a new box seems a bit steep. Thanks
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My thoughts exactly. Simple to hard wire two heavy relays - Lucas starter relays are cheap and easy to find anywhere - to operate the up and down through the switches if the winch is OK.

Seen it done with a winch for hauling small boats up the beach in NZ.

They were housed in an empty outboard engine cemented into the ground for weatherproofing.

Kiwi's dont waste anything.............................
 
matthewriches said:
It's currently sat on my workbench being repaired :)
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I have the same issue too. I try to check the soldering of the component but nothing changes. I guess could be a problem on what appear as a power diodes or power mosfet by stmicroelectronics but I'm not able to find which component I can use in the market.

Did you find the problem or the component?

Thanks
S
 

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On old boards it is often one of the big cylindrical capacitors that will have dried out. They can be tested with a multimeter and are easy to replace. Otherwise it is often a matter of looking carefully for something that has let the magic smoke out. Most components can easily be removed with a soldering iron a a bit of solder wick.
 
I'm guessing people operate equipment without reading the manual. Including the engineer?

It is not just thermal overload. It is to reduce the chance of you breaking stuff, including the winch and gear that it is attached to. Also note that the SWL is given as 50% of the breaking load, which is ... way more than the real SWL if you want it to last long.

Note that you will see the winch slow and hear the change, but knowing when to stop without the box is up to "judgment,"

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