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  1. R

    Marine Air heat on 330 express

    Thanks for the reply, yes I figured out how to get it on the heat mode vs A/C, you can heard what sounds like a pump turn on. The seacock valve is open or at least when I turned it on the quarter turn valve arm moves up. I will look next time at the boat to see if water is coming out the thru...
  2. R

    Marine Air heat on 330 express

    Ok, I’ll take a look, thanks.
  3. R

    Marine Air heat on 330 express

  4. R

    Marine Air heat on 330 express

    the a/c seacock is open. I didn’t look to see if water was cycling out the thru hull, I will look next time I’m at the boat. Could the heat pump be bad or maybe a clog? Thanks for the reply.
  5. R

    Marine Air heat on 330 express

    2004
  6. R

    Marine Air heat on 330 express

    Hey guys, I’m new to this forum. Currently in the process of purchasing my first GW 330 ex. When I went to run the a/c and heat I couldn’t get any heat out of the vents, just the fan would blow. A/C seems to work fine. Any ideas what it could be?