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Old 09-04-2010, 04:11 PM
irg8ric irg8ric is offline
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submersible pump

First post. I have a customer with:

240v submersible pump in river
hunter pump start relay

I have verified that the psr is functioning. I have verified that I have 240V at the pump.

The pump kicks on for 30 seconds and then shuts off for several minutes. The pump is constantly repeating the above. Any ideas what might be going on here?
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Old 09-04-2010, 04:26 PM
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How much water covers the pump? Have you taken resistance measurements?
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Old 09-04-2010, 04:40 PM
irg8ric irg8ric is offline
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pump is covered 100%

I have not taken resistance measurements. What type of readings should i be looking for? Wiring for pump is black, white, and bare copper.
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Old 09-04-2010, 04:47 PM
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Not much to see on a two-wire pump, unfortunately. My guess is that an internal trip is taking place, like for overheating.

Some surface-water installs of submersible pumps use a cradle/enclosure that maximizes the flow of water past the motor. You could kludge something together and see what that does.
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Old 09-04-2010, 04:51 PM
irg8ric irg8ric is offline
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the controller is wired to the same circuit as the pump. wiring for controller is hooked into hot side of psr. would this be causing a problem? the controller is only pulling from one leg of the 240v?
if internal trip is taking place, should i just replace the pump?
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Old 09-04-2010, 05:06 PM
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I would try a makeshift enclosure to force the water flow past the motor. It could be a simple as some four-inch pipe and a cap with a hole cut in it.

Of course, if you have a spare pump, you would try that first.
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Old 09-04-2010, 05:08 PM
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what make pump?

who installed it?

normally 220 is wired red and black, sometimes blue and black, white is normally for a neutral wire.

a franklin sub pump has red,yellow, black and green

red ~ yellow = 10.7 - 13.6 ohms - start motor

black ~ yellow = 3.0 - 3.6 ohms - main windings

http://www.do-it-yourself-pumps.com/...cs-testing.pdf

the link is for othe single phase pumps

a little more information would help
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Old 09-04-2010, 05:09 PM
irg8ric irg8ric is offline
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sta-rite model # 05p4e02j-04
franklin electric model # 2445089003
1hp .75kw ph1 230v 3450rpm 60hz 8.2amps

pump was installed by well company.

Last edited by irg8ric; 09-04-2010 at 05:14 PM.
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  #9  
Old 09-04-2010, 06:00 PM
irg8ric irg8ric is offline
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just performed resistance check on 2 wire pump. readings were within accpetable range of chart provided to me by 1idejim.
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Old 09-04-2010, 06:07 PM
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Quote:
Originally Posted by irg8ric View Post
just performed resistance check on 2 wire pump. Readings were within accpetable range of chart provided to me by 1idejim.
i forgot, welcome
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