Marine Air AC/Heat problem - SailNet Community

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Old 08-16-2010
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Marine Air AC/Heat problem

I have a Marine Air 16,000 BTU unit with the touch pad control. My problem is that it is giving me a HHH code, which I think is a high pressure code. Can I repair this myself or is this something I need a HVAC tech to repair?
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Old 08-16-2010
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Try cleaning the water intake filter before you do anything else.
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Old 08-16-2010
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Yep did that all is nice and clean
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Old 08-16-2010
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If you're getting good water flow through the system then it's likely you may have a sensor problem. Sorry cant help out with it more than the basics. Good luck
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Old 08-16-2010
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Even with good water flow you can have a build-up of biologics and minerals inside the A/C heat exchanger that reduces thermal conductivity.

For starters, reverse flush the entire system. If that doesn't work use an acid flush. I use Acid Magic, available at most hardware stores, that is "buffered" specifically for HVAC and swimming pool systems to reduce unwanted impact on the system.

Follow the label directions including disposal of the used acid.
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