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Old 04-23-2016, 08:46 PM   #1
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Water pump switch...Help!

I have a 1996 Bounder and it has 3 switches to turn on the water pump along with 3 indicator lights to show if the pump is turned on or off. The indicator light in the bathroom was not working so I switched it with the one for the outside shower and now none of the water pump switches will turn off???

What on Earth could have gone wrong.

In an attempt to fix it I put everything back the way it was but to no avail.

Thanks
Adam
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Old 04-24-2016, 01:18 PM   #2
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These switches are the momentary type, or regular on/off switches that stay the way you leave them?
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Old 04-24-2016, 03:04 PM   #3
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They are the momentary type.
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Old 04-24-2016, 07:16 PM   #4
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So you have a (latching) relay somewhere, and every time the switch is closed it changes the pump's on/off status. If it was on when you hit the switch, it will turn off. If it was off, it will turn on. Pretty simple!

If all you've done is move the switches around, my bet is you managed to blow a fuse. Where that is at is anyone's guess, but if you know where all the fuses are for stuff like the 12 volt cieling/interior lights, that's where I would start. Best of luck!
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Old 04-25-2016, 02:46 PM   #5
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Does anyone know where the relay could be? I have checked every 12v fuse under the dash on the wall and under the hood. Every fuse was good. I am pulling my hair out trying to figure this out.

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Old 04-25-2016, 02:48 PM   #6
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It is usually back by the pump.
Might look like this.
Products - Motor Controls - Water pump controllers - Water Pump Control
And the circuit
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Old 05-01-2016, 10:15 PM   #7
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Still trying to diagnose the issue. I have found the low side latching controller and I am trying to determine if its bad. Does anyone know of a testing procedure?
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Old 05-02-2016, 06:55 AM   #8
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With a voltmeter check 12v to load. Then apply ground to SW, this should toggle the pump on and off and your meter should show 0 and 12 volts.

While testing you will need to have 12v and GND connected.
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Old 05-02-2016, 06:56 AM   #9
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Does it have power (12v)?
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Old 05-02-2016, 08:16 AM   #10
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Quote:
Originally Posted by afrohman View Post
Does anyone know where the relay could be? I have checked every 12v fuse under the dash on the wall and under the hood. Every fuse was good. I am pulling my hair out trying to figure this out.

Thanks
Adam
My 12v fuse is on the side of the bed in the 12v house panel. If it is ok then SPK64 has the answer.
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Old 05-02-2016, 02:26 PM   #11
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So I used my volt meter and it has 13.5 V (plugged to shore power) to the 12v source SW is showing 7.5/0V depending on if the switch is toggled on or off. Load reads 0 no matter how the switches are toggled. I removed the SW wire and grounded it to the ground on the low side controller and it didn't do anything. Does this mean I have a bad controller or deeper problems?
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Old 05-02-2016, 02:34 PM   #12
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When checking Load you will need to to put one lead on 12v and the other on Load. The controller is Sinking the load so it will read 0 if you compare to ground.
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Old 05-02-2016, 08:02 PM   #13
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Thanks for all the help on this. Turns out its the latching controller that is bad. My next question is its a 7 amp controller and all I can find is a 10 amp one. Is it compatible with my current pump?

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Adam
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Old 05-02-2016, 08:17 PM   #14
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Water pump switch...Help!

Get the 10 the 7 is actually a little small for some of the newer pumps. And yes it is compatible.


Steve
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