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Old 04-28-2018, 04:11 PM   #1
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Spring Commissioning AC Unit

Hi,

I splashed yesterday and today spent some time getting systems in order today. All is well except the AC unit is not pumping, although it is on and working (spinning). I took off an outbound hose and poured water into the pump (over a gallon), and it is still not primed. The only thing I can think of is there maybe an air pocket between the strainer and the pump itself. It is a Dometic Marine Air System.

What is your spring routine for getting the AC working?

The generator started right up and was pumping well, as were the Yanmars.

Thanks,

Jim
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Old 04-28-2018, 05:02 PM   #2
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On my A/C it primes easily because the pump is below the water line and the hose slopes continuously upward to it from the thruhull/strainer.

But some systems you have to crack the strainer lid to let any air pocket out and let a little water seep out and start the A/C which should pick up and pump.

David
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Old 04-28-2018, 05:05 PM   #3
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Make sure the seacock is open.
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Old 04-29-2018, 03:31 PM   #4
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I had an air pocket in the hose between the strainer and the AC pump.

Thanks for the suggestions.

Jim
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