Water in my radar??

[seabuggy]

I was checking out my radar and it seemed "frozen". After some of my favorite swears, I found some fresh water inside of the dome. It is a Garmin 19" dome bought in 2008. I got it working, but my question is; should I spray it with WD40? The Garmin people say send it back to them with $400. No answer about the WD40. Does anyone have experience spraying WD40 on electronics such as the inside of a radar? Also where did the water come from? The dome is not cracked, the gasket looks very good, and the boat was stored inside all winter. I noticed some green scum with the water like it had evaporated in the past.

[fishaholic18]

Get Electronics Spray Cleaner

[Raven]

2nd that......... it's made for the job

[wrench]

The dome should have a drain to allow any water that is inside from condensation from temperature changes. Make sure the drain isn't clogged or was obstructed when unit was installed.

[MakoMike]

What both of them said, electronics cleaner. WD40 will just gum the whole thing.