Dimming the Lights!

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  #1  
Old 02-28-13, 09:56 PM
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Dimming the Lights!

Hello,

My lights dim when I take a shower!
I think when the water well pump starts, it pulls power from the lighting circuit in the panel for power!

What is my choices to fixing this?
The well pump is on the right side of the panel on circuit 16!
The Lighting/rec. circuit is on the left side of the panel on circuit 09!
 
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Old 02-28-13, 11:51 PM
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Hello back.

The two circuits you mention are on opposite legs of your service so seeing the lights dim is strange. Are they blinking when the pump comes on or are they dim the whole time the pump is running ?

Your pump is a 120 vac pump ? Most are 240 vac.
What size is the service ?
 
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Old 03-01-13, 09:03 AM
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That is strange, come to think of it!
The lights dim after about 5 to 10 seconds in the shower!
I can't tell if they staying dim or just for when the pump is running!

The pump is a 120 volt circuit, its on its own circuit!

I'm wondering if its something else on that side
of the panel that's making this happen!
The only time I notice this, is when i'm taking a shower!


Thanks for your help!!
 
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Old 03-01-13, 09:35 AM
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Do you have an electric water heater?
 
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Old 03-01-13, 09:43 AM
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Just as a test, I would turn the shower on, just as if you were going to take a shower, but not get in it, then go to the pump, and see if it is in fact cycling every 5-10 seconds, or at whatever rate the lights are dimming. If that is the case, the motor is almost constantly starting, which puts it at its' peak draw. Also, what type of tank do you have; a bladder or no bladder type? Perhaps your bladder is shot, or your tank is in need of an air charge.
 
  #6  
Old 03-01-13, 12:38 PM
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Thank you everyone that put their sense into this!

The water heater is gas!
How do you know its a bladder or not?

I've made the choice into troubleshooting the whole house, amp probing and detailing every circuit!

This house is old and has problems, I'm going to try to correct the balance on the panel phasing ( which is hard to do, unless I turn everything on ) and watching the lights again! If that's not the problem, then I'll move forward with calling a water well specialist to check the pump and everything it deals with!!


Thanks again!
 
  #7  
Old 03-01-13, 01:06 PM
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Generally speaking, a bladder tank has a smooth painted surface, usually blue, and a tank without a bladder is galvanized.
 
  #8  
Old 03-01-13, 02:55 PM
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I'm going to try to correct the balance on the panel phasing (which is hard to do, unless I turn everything on) and watching the lights again!
I'm wondering if its something else on that side of the panel that's making this happen!
The well pump is on the right side of the panel on circuit 16!
The Lighting/rec. circuit is on the left side of the panel on circuit 09!
Originally Posted by PJmax
The two circuits you mention are on opposite legs of your service
In order to balance the loads in your panel by phase, or leg, you need to understand which circuits are on each leg. It isn't each side of your panel that's fed with each leg. It's every other row.

Here's the way the two hot buses in your panel are connected to the circuits, and why PJ could say circuit 9 and circuit 16 are not on the same leg. "A" and "B" represent the two opposite legs:
  • 1 - 2 ..... A
  • 3 - 4 ..... B
  • 5 - 6 ..... A
  • 7 - 8 ..... B
  • 9 - 10 ... A
  • 11 - 12 .. B
  • 13 - 14 .. A
  • 15 - 16 .. B
 
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