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Bilge wire has continuity but no power. I’m lost

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C_Heath View Drop Down
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    Posted: April-20-2020 at 8:21pm
Ok so I think it’s wrong to open another “I need help” thread while I have one open already HA!!! But I’m lost. 2000 pro air with GT40. The bilge is working because when I Unhook it and plug it into the ballast wire and hit fill on the pad it cuts on for 2sec like it supposed to to check if water is present.

Ok to the key pad. It’s BRAND NEW today. Got it in the mail thinking it was the pad. That was a $421 mistake. So when I hit the bilge button the pad, the green light cuts on and I hear a small tick under the dash. Just like when I hit any other button.


My meter also measures continuity by alarm and the bilge plug has continuity but when I switch it over to volts I get nothing. Also, all the breakers under the helm are good shape and not tripped.


Does anyone have the slightest idea of what I can check next.? Yes I can run the bilge off of the ballast wire just fine but it will only run the front pump and I spent 8 hours putting a new pump in the rear back in March and I just want everything to run like it’s supposed to. Dropped a load on this thing and it was all I could afford. Nice boat but I am certainly Busting Out Another Thousand quiet frequently lol

Thanks again guys!
Chris in NC
1979 Calipso Runabout (the boat that got it all started)
1988 Mastercraft ProStar 190 (sold)
2000 Pro Air Nautique/GT40
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bfootr View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bfootr Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 9:11pm
Have you checked power at the bilge pump with the switch on to a known good ground (maybe back to the battery or engine block)?
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Gary S View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary S Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 9:14pm
My 95 uses 2 Atwood pumps and a Water Witch switch like one of these I suspect yours will be similar or maybe the pumps have a built in switch? Fill the bilge and see if it turns on. I do know you have to wipe the switch off every now and then if you have a dirty bilge
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C_Heath View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote C_Heath Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 9:26pm
Originally posted by bfootr bfootr wrote:

Have you checked power at the bilge pump with the switch on to a known good ground (maybe back to the battery or engine block)?



The entire keypad is sealed. I can’t get into it. It plugs into a 4 pin plug at the helm.
1979 Calipso Runabout (the boat that got it all started)
1988 Mastercraft ProStar 190 (sold)
2000 Pro Air Nautique/GT40
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C_Heath View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote C_Heath Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 9:27pm
Originally posted by Gary S Gary S wrote:

My 95 uses 2 Atwood pumps and a Water Witch switch like one of these I suspect yours will be similar or maybe the pumps have a built in switch? Fill the bilge and see if it turns on. I do know you have to wipe the switch off every now and then if you have a dirty bilge


When I unplug the non powered bilge wire and plug the actual bilge pump into the ballast wire (that reads 12v on my meter) the pump starts running.
1979 Calipso Runabout (the boat that got it all started)
1988 Mastercraft ProStar 190 (sold)
2000 Pro Air Nautique/GT40
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bfootr View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bfootr Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 10:03pm
Can you check voltage at the connection at the bilge pump? If you can and you don’t get any voltage, check it again with the negative lead from your meter to a known good ground. You can call me if needed (especially since you’re a fellow NC’ian :-) if needed. 919-464-9137. -Gene
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8122pbrainard View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 10:13pm
Originally posted by C_Heath C_Heath wrote:


Also, all the breakers under the helm are good shape and not tripped.
Thanks again guys!
Chris in NC

How did you check the breakers? For voltage in and out with the VOM?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote C_Heath Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 10:29pm
Originally posted by C_Heath C_Heath wrote:

[QUOTE=Gary S] My 95 uses 2 Atwood pumps and a Water Witch switch like one of these I suspect yours will be similar or maybe the pumps have a built in switch? Fill the bilge and see if it turns on. I do know you have to wipe the switch off every now and then if you have a dirty bilge


Also my pump is automatic. It checks for water in the bilge every 5 minutes and knows if it’s there by amp draw. If the draw is higher because of the load, it continues pumping water. After 5 nite minutes it checks again. No float switch.
1979 Calipso Runabout (the boat that got it all started)
1988 Mastercraft ProStar 190 (sold)
2000 Pro Air Nautique/GT40
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C_Heath View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote C_Heath Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 11:18pm
Originally posted by 8122pbrainard 8122pbrainard wrote:

Originally posted by C_Heath C_Heath wrote:


Also, all the breakers under the helm are good shape and not tripped.
Thanks again guys!
Chris in NC

How did you check the breakers? For voltage in and out with the VOM?


I’ll do that tomorrow. If not I’ll call ya! Thanks lol
1979 Calipso Runabout (the boat that got it all started)
1988 Mastercraft ProStar 190 (sold)
2000 Pro Air Nautique/GT40
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C_Heath View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote C_Heath Quote  Post ReplyReply Direct Link To This Post Posted: April-20-2020 at 11:18pm
Originally posted by 8122pbrainard 8122pbrainard wrote:

Originally posted by C_Heath C_Heath wrote:


Also, all the breakers under the helm are good shape and not tripped.
Thanks again guys!
Chris in NC

How did you check the breakers? For voltage in and out with the VOM?



I didn’t open the breaker box. It said not to. I just checked to make sure they weren’t any tripped.
1979 Calipso Runabout (the boat that got it all started)
1988 Mastercraft ProStar 190 (sold)
2000 Pro Air Nautique/GT40
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