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Old 07-07-2012, 05:41 PM
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c640947 c640947 is offline
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Join Date: Aug 2004
Boat: temporarily boatless
Location: Houston, TX
Posts: 203
UPDATE

So I found a post that point to the problem being the relays:

http://www.mastercraft.com/teamtalk/...ad.php?t=43365

and another referenced post that discusses the relays:

http://www.mastercraft.com/teamtalk/...ad.php?t=40934

When I took off the relay / fuse box and laid it on its side, all pumps worked in both directions. So I am thinking the relays are old and got stuck. They would get stuck again and hitting the relay with a wrench solved the problem. I have ordered new relays from here:

http://www.ase-supply.com/87411_MINI...p/hl-87411.htm

I will put them in and see if that finally solves the problem. Just wanted to update any future folks with the same problem.

odd that the wires to the pump were getting proper voltages yet if they ran was dictated by the relays. I guess I don't understand the purpose of the relays...
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Previous Boats:
2006 Mastercraft X2
1995 Mastercraft ProStar 190, New Dimension Tower
1990 Supra Conbrio
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