90 Searay 350 Air Conditioning Units inoperative.

[Beech2000]

Hi All,
With the extreme heat (95F everyday) I've push my AC Units to the max and now both are inoperative. The rear unit is "Marine Airrrr" 6000BTU and the Fwd Unit is a "Marine Airrrr" 16000BTU. I noticed no sea water coming out of fwd or rear exit. I did try connecting the seawater pump directly to 115Volts and water moves through normal but units still not cooling. So the pump is good and strong when wiring directly but its not getting the 115 VAC to the pump. I'm looking for a wiring diagram and / or some assistance if able. Thanks

 

[DougLas]

Try this: bypass the pump and run water from a garden hose direct to the unit. More than likely the unit has silt and build up in it. The regular pump does not have enough pressure to blow out the gunk in the ac units.

 

[boatmailster]

First you should check if your thermostat control is operational. If both units failed at the same time then most likely either pump failed or thermostat or clogged water pickup.