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Old 06-13-2005, 10:45 PM   #1
IAR 80
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help pls

last weekend i've got some "moisture"...looking like drops, in electronics compartment.servos are working , but the receiver,...not yet
opened it today to let it dry,( tough task these days anyways).if tomorrow is still not working, what should i do?

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Old 06-14-2005, 05:38 AM   #2
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Use your heatgun to dry it out . Keep it moving though so you don't cook anything.

If still not working, send for repair or buy new one.
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Old 06-14-2005, 07:54 AM   #3
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I would give it more time. Don't try to power it up untill it is completely dry. You don't want to short anything. The heat gun is good idea or a hairdryer. If the sun is up there put it out on a porch and let it sit for an afternoon. You may also want to give it a light rinse wash with some isopropyl to clean up any residue left by the droplets.

You will probably find that it works just fine after it drys out.
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Old 06-14-2005, 09:05 AM   #4
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Once you have it as dry as possible, use a spray of WD40 on the inner workings of the receiver. One of its primary uses is to eliminate moisture.

I have used this on electronics many times with excellent results. I dunked my float plane once and everything inside the fuse was soaked. When I got everything dried out, I gave all of the electronics a spray and everything worked perfectly after!

Its definitely worth a try! In any case, make sure you test out your receiver thouroughly and its working properly and consistantly before putting it back in your plane!
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Old 06-14-2005, 10:56 AM   #5
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If it's water, alcohol will pick it up. When I get some electronics dunked, I open it up and "hose" it with IsoPropal Alcohol. (Pure 100%) Then I let it air dry. The IPA leaves no residue, and picks up any water and washes it away. I have used this on everthing from model railroad and RC electronics to $100,000.00 lab instruments, and it works. The shot of WD-40 suggested by Gary will also help keep humidity at bay, and as it is not conductive will not cause a problem either.
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Old 06-14-2005, 11:30 AM   #6
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It's hard to dry the water out from under any chips, surface tension or wicking keeps it stuck under there. Use a can of compressed air to blow it out before the hair dryer, saves time and heat. Be careful if you choose to use an air compressor rather than a can of air, it's huge volume can cause static electricity to damage chips (if they are CMOS - which most are today).
It's not the water that hurts the electronics, but the corrosion and the conductive dirt left behind. I've restored a computer that got rained on (motherboard was soaked) - used alcohol (like Gary and Dave said), blew any remainder out from under the chips, put it over the furnace register to dry.

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Old 06-14-2005, 06:33 PM   #7
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i'm "back in bussiness ".it works again.

honestly, i used all methods.
1. sprayed some WD-40 (considering it's a bit greasy)
2. sprayed some IPA from Radio Shack ( cleaner for heads and contacts, which i made sure is ISP )
3. used a hair dryer with shots of warm ( not hot ) and cold air.

so, it looks ok.

thank you all for your quick response.



i'm happy now.few years ago, my videocamera which survived the huge fire in my apartment, didn't make it with the water ( probably some chemicals added as well) used to put the fire down.basicaly i used same technique, but....the life goes on.

thanks again
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Old 06-15-2005, 03:29 PM   #8
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I have read somewhere in and RC magasine That this stuf work very well for electronic.

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