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Old 11-21-2019, 10:37 PM   #1
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350 Head Power?

1998 350, just went to flush the head and nothing. Doesnít seem to be getting any power to the macerator pump/motor. Checked main breakers but they seem fine. Anybody know where they bring in power for the head or if there is a fuse hiding somewhere in a cabinet? Thanks
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Old 11-21-2019, 10:59 PM   #2
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Are you sure you arenít getting power to the head, have you checked it with a volt meter? Macerators can get hung up if they arenít used regularly. Usually there is a shaft sticking out the back with a slot for a screw driver to turn the shaft manually. That may break it free if it is hung up.
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Old 11-22-2019, 05:54 AM   #3
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It is not locked up, I can turn the shaft and it moves freely. Just rebuilt the whole head less then a year ago and we live on the boat so itís been getting regular work outs.
Time to get out the meter and trace the wires.
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Old 11-23-2019, 10:01 AM   #4
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Think I found the problem although I still donít know where the fuse is.
Pulled the switch out and rats-nest of wires. With lights off, and toggling the switch I could see a spark. Looks like they used small bolts and nuts to secure wires together, then wrap it with tape. At least they used a lock washer.

Donít think that meets any code. Now to find crimps that will work.
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Old 11-23-2019, 11:39 AM   #5
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Quote:
Originally Posted by Djoub View Post
Think I found the problem although I still donít know where the fuse is.
Pulled the switch out and rats-nest of wires. With lights off, and toggling the switch I could see a spark. Looks like they used small bolts and nuts to secure wires together, then wrap it with tape. At least they used a lock washer.

Donít think that meets any code. Now to find crimps that will work.
Retrofit with terminal strip seems in order.
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Old 11-23-2019, 12:13 PM   #6
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Originally Posted by Djoub View Post
1998 350, just went to flush the head and nothing. Doesnít seem to be getting any power to the macerator pump/motor. Checked main breakers but they seem fine. Anybody know where they bring in power for the head or if there is a fuse hiding somewhere in a cabinet? Thanks
We have a 390, there is no fuse between panel & macerator, This past summer ours stopped working, Shaft turned but nothing, it was the Motor had given up, in retrospect the head had sounded different this year I changed the complete pump assembly
https://www.marineoutfitters.ca/inde...e=671880032834 Plug and play and got us back up and working in an hour. I rebuilt the old one to keep as a spare.
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Old 11-29-2019, 02:48 PM   #7
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[QUOTE=Cartouche;822906]We have a 390, there is no fuse between panel & macerator, This past summer ours stopped working

So I thought this was a quick fix project. Replaced all the jumpers and pigtails with crimped connectors and a distribution strip. Turned breaker back on and I donít have any + power to macerate but I do have it on breaker panel. Ran a jumper from +heavy wire on breaker to dist strip and it works fine so I know the grounds are connected.

It seems that the wire from breaker and the + on the strip are disconnected somewhere? Not sure why this wire is 8/10 awg, motor is 10 amps, seems over kill for the breaker and the motor, 20-30 foot run Iím guessing.
Any ideas short of running new wire?
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Old 11-29-2019, 09:55 PM   #8
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ours is a 2003. I had a similar issue and it was the switch itself. replaced it and that solved the problem. However it did not look anything like yours. Mine is just a pushbutton attached to a double pole switch that operates the pump and macerator.
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