The air conditioner on my 2005 270 CR is running, but not blowing cold air. There is not water flowing out of the through-hull on the side of the boat and it's about 103 here in Marlyland. I opened up the stainer on the other side of the raw water intake. It wasn't all that dirty but I cleaned it out anyway....still no cold air or water flowing. I figured my next steps should be to close the through hull seacock, remove the hose between it and the strainer to make sure it's not blocked, then briefly open the seacock to ensure it's not blocked. Assuming I have water flowing on that end, it would have to be the pump that's either clogged or broken correct? Are there other steps that I should take to confirm this? When the air conditioner is on, the pump in the engine compartment is running, although it does seem to be making a clicking noise. Is there also something I should check on the a/c unit in the cabin?