Was out on the river this weekend and the a/c worked for a little while but then it flash a code of HPF.manuel says its high pressure freon.i turned it off then back on and about every 2 minutes it does it again.It was 89 in the cabin.I release some pressure from the vavle but didn't make a differance.Anyone know what the fix is.Do i need freon ?

You need a new boat.....I'll give you a few bucks for your POS

If you see water pumping out and the compressor kick in then it's over my head.....good luck!

Thanks Russ i guess you will be no help.lol

i'll sell you a used window unit, slight damage :

was the water circulating? If the pump stopped, It will cause pressure to build since it cant get rid of the heat.

It means high pressure-freon. For some reason your cooling water is not going through the unit. Either the system is clogged or the pump is done-you may also have an airlock in the system. Try opening the sea strainer and see if there is water flow there.

I have water coming through and it cycles but it just doesn't cool down.thinking it needs recharged with freon.i have a friend coming over today to put gauges on it and check for leaks and recharge if needed.

Funny Will but you might need that so when you pass out at the 2nd ann.SML Fun Run in a few weeks you'll be cool.

If its low, your pressure is low as well. I dont think that is the problem.