A/C Unit Advice

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Bob Rutland

Our 84 H31 has a King Air marine A/C unit. The unit is raw water cooled, but the water just trickels out the exit thru hull.I've checked the pump,inlet thru hull and strainer,all hoses and all are clear. The blockage seems to be in the coil the cooling water circulates. What can I use to clean this coil? Thanks for the help, Bob
 
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Ernie Rodriguez

Try using fresh water...

from your shore side water supply. Usually the water pressure is pretty good, so if you can connect a standard 5/8 hose to the cooling pipe right at the compressor you can check to see if it flows thru clearly.
 
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