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Electronics overheating and freezing

Old 06-14-2019, 01:04 PM
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Default Electronics overheating and freezing

Hi All,

I bought a new boat a couple of months ago and now have begun to really use it. It's a Whitewater with a gas inboard. When I run the boat hard at the end of the day, I always like opening her up at the end. However, because the engine is in the console, my Simrad NSEs get extremely hot and begin to freeze and/or to turn off. I'm wondering if you all had any suggestions on how to keep the temperature down. Any suggestions would be great!

I've thought about buying insulation material and building a "box" behind the heat sinks of the NSEs to stop the heat from the engine to affect them. Now sure with so many diesel inboard boats if anyone has already solved this issue.

C.I.

Last edited by Classifiedinfo; 06-14-2019 at 01:42 PM.
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Old 06-14-2019, 02:22 PM
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Add small 12v fan blowing on heat sinks
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Old 06-14-2019, 02:36 PM
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You should try adding a small 12 volt fan to see if that helps, maybe even two. But if you notice that it doesn't help on the long days on the water then building even a fiberglass or starboard box will help and then take those fans and mount them into the box. air circulation is the best thing. those units have nothing pushing air onto them and they need to release heat
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Old 06-14-2019, 02:57 PM
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Thanks guys, I was thinking of starting with some 12v fans however, if i place the 12v fans without insulating the back of the NSEs wouldn't I just be blowing all that hot air around? I think I might have to do the box with the fans, and blow that hot air back into the console. Might need to figure out how to have air circulate in and then out of the console and try to cool the entire area down a bit. I'm thinking about adding cutting into the forward seat at the top and bottom and adding some sort of grill to have the cool air enter through the bottom and then have the hot air escape through the top.
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Old 06-14-2019, 05:40 PM
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Always thought adding a couple of thermoelectric cooling plates to each unit would be a great way to prevent this. They're all over Ebay.
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Old 06-15-2019, 07:30 AM
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Originally Posted by mstyle8517 View Post
Always thought adding a couple of thermoelectric cooling plates to each unit would be a great way to prevent this. They're all over Ebay.
They are inefficient and will add to the already hot ambient in the console. The best thing is to ventilate the entire console, pulling in outside air. There is some merit in a radiant shield from the engine, if the electronics is "in site" of the engine itself. So, there is not just hot air causing the issue, but the engine top radiating to the electronics directly.
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Old 06-15-2019, 09:27 AM
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If at all possible, some thermal block between the engine compartment and the electronics should be added. Kind of surprising it isnt there from the builder actually unless there is and you're just getting heat through wire chases.

After isolating them a set of high and low vents to start a convection is the simplest way to passively cool them. A 12v muffin fan is also not difficult to add or expensive, I add one on every install with multiple mfd's. They will be much happier with good cooling!
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Old 06-15-2019, 08:26 PM
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Since it is an I/B , have you already tried running your ventilation blower to add to the effect of the passive ventilation system? Make sure your ducting is intact.

Is there a console door you can keep open too
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Old 06-15-2019, 08:38 PM
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Are you running with the glass instrument cover up? If not, perhaps you can open it just a bit to let the heat out? Might be tricky with the gas strut.
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