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Bildge Pump operation

Old 04-20-2004, 01:38 PM
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Default Bildge Pump operation

I have a bildge pump that is automatic/manual and the manual part of it does not work. The automatic works correctly anytime that the bildge has enough water in it to kick it on. The pump is a 1500GPH Rule pump with the seperate auto switch. I also have a manual switch on the helm and it will not activate the bildge when turned on. I have checked the switch and the breaker and both tested good. One thing I did notice was, the switch for the bildge has a power wire going to it with power present and then out of the switch is a clear plastic sheath that houses a (what looks to be) resistor. There is power at the other side of the switch but nothing at the power side of the breaker.

Does anyone know what this is? Please let me know your thoughts and thanks in advance.

Gary
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Old 04-20-2004, 07:16 PM
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Default RE: Bildge Pump operation

take a pic.

No clue as to what it could be, but The pump should run at full power regardless though. Jumper it and see if the pump goes when you hit the switch.
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Old 04-21-2004, 09:53 AM
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Default RE: Bildge Pump operation

OK, I will take a pic and let you see it. Thanks for your reply.

Gary
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Old 04-21-2004, 10:20 AM
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Default RE: Bildge Pump operation

the sheath contains a diode, I had the same thing on my HS. It keeps current from back feeding when the auto switch kicks it on and still allows the light to come on. I don't think it would keep the pump from working on manual mode.
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Old 04-21-2004, 10:38 AM
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Default RE: Bildge Pump operation

If the diode opens it could keep voltage from reaching the pump.

Well maybe, I dont know how it's wired though.
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Old 04-21-2004, 06:58 PM
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Default RE: Bildge Pump operation

Yes, An open diode will keep the pump from running when the switch is in the on position. measure the voltage on both sides of the diode if you don't have 12vdc on both sides open diode ( yes if the diode is good the voltage will be .7vdc less). the replacment diode will cost about $0.50. I beleave a 1n4005 p/n should do it radio - Sorry, I will learn to watch my language -tt should have one. Make shore you wire it in the same direction as the old.
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Old 04-21-2004, 08:02 PM
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Default RE: Bildge Pump operation

a 1n4005 is only good for 1 amp of current. It can not handle the current of a locked impellor (jammed with trash), look for one for around 5 amps.


Like this one at digikey

http://www.digikey.com/scripts/DkSea...392748&Site=US

http://rocky.digikey.com/WebLib/Gene...0-%20SB560.pdf
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