Float switch question

Old 03-04-20, 10:08 PM
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Float switch question

I am working with a new 1 hp sump pump that has the type of float that has the rectangular float switch inside it an the wire connected to it.It is in a outside area.
For some reason it's not engaging on it's own even as water gets the height of the pump an its horizontal an even turned as water rises.I can wiggle it an move it an sometimes it enguages.
It has a single plug to the pump.
Can a replacement sump float ,the kind that has the piggyback plug on it,that you buy locally ,work with these type of sump pumps ? An what do I need to do with the original one as far as the position ?
I had tried it ,with original float upright-on,an after the water was low enough to kick off the new I heard it just lightly buzzing an likely still running.I quickly cut it off.
Is this a option that can work or will the internal connection to the nonworking float always prevent normal operation with the new ,separately wired, one ?.
Any info is appreciated
Old 03-05-20, 05:32 AM
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If the old switch isn't working reliably I would replace it. I would NOT leave it in the circuit. And, that solves the problem about what position to leave it in. Toss it in the garbage. Then you can wire in a new float switch to replace it. Or you can direct wire to the motor then plug the pump into a piggyback plug float switch like you mentioned. Just make sure you get a switch capable of handling the motor's amperage.

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