The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Industrail Control Panel bonding per 409.108
by sparkyinak
Today at 03:17 PM
Calling all Non-US members!! (Non-US only)
by aussie240
Yesterday at 02:39 AM
Photo Upload Tutorial
by DanK
12/06/16 11:35 PM
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
sparkyinak 8
Texas_Ranger 8
Potseal 6
Who's Online
0 registered (), 213 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#39005 - 06/07/04 01:39 PM Flickering Lights....
semano Offline
New Member

Registered: 06/07/04
Posts: 3
Loc: hayward, california
I need some troubleshooting tips here. I have a customer that is experiencing flickering lights, but not in anyway that I've ever seen or heard of. The lights will brighten, then dim and a small tv in her kitchen will shut off.....when does this happen? Whenever she turns on her jacuzzi tub. No new work has been done in this house in the past ten years. The tub is on a dedicated circuit. The tv is plugged into a circuit which is on a different leg from the (110V) jaccuzi circuit. Any ideas? Or is this the utility company's problem from the pole to the main? I didn't read any voltage fluctuation when the tub was turned on (but then I don't have a digital meter either). By the way, the weatherhead was truck by lightning 2 years ago, but according to the homeowner the entire service was rmoved and replaced to code.

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#39006 - 06/07/04 02:25 PM Re: Flickering Lights....
crash Offline

Registered: 10/21/03
Posts: 130
Loc: Calgary Canada
Sounds like there is a bad connection on the neutral conductor that is feeding the panel.

#39007 - 06/07/04 06:05 PM Re: Flickering Lights....
Electric Eagle Offline

Registered: 04/20/02
Posts: 928
Loc: Alpharetta, GA
I'd put money on a loose neutral at the Poco's transformer. Check all the connections in the panel and disco (individual circuits and mains). If all is OK, tell the home owner to call the poco. I see this 3 or 4 times a year and it's ALWAYS the poco's fault.

Although it is kind of fun to watch the lights get brighter when you use a hair dryer.

[This message has been edited by Electric Eagle (edited 06-07-2004).]

#39008 - 06/07/04 09:07 PM Re: Flickering Lights....
Edward Offline

Registered: 12/14/02
Posts: 309
Loc: California
When you have PG&E check their connection make sure they check at the service riser and at their pole.


#39009 - 06/08/04 07:26 AM Re: Flickering Lights....
cs409 Offline

Registered: 05/19/04
Posts: 28
Loc: Orange, Texas
after you have the utility company check,,and if they dont find anything,,,just remember the words lightning strike that she mentioned...good luck

#39010 - 06/09/04 12:45 AM Re: Flickering Lights....
Trumpy Offline


Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
I'd say start at the Panel and work upstream from there.
There has to be a loose or broken Neutral or Phase wire in the system.
Let's face it, these days if you're not young, you're old - Red Green grin

#39011 - 06/11/04 12:06 PM Re: Flickering Lights....
SJT Offline

Registered: 07/24/02
Posts: 242
Hello Semano,
Which state do live in? I was checking out the profile. I guess you forgot to type it in.

#39012 - 06/11/04 12:53 PM Re: Flickering Lights....
semano Offline
New Member

Registered: 06/07/04
Posts: 3
Loc: hayward, california
Thanks all. Everybody was right on this one. It was a loose neutral, or corroded neutral I should say. Finally got off my butt and got up to the weatherhead after checking everything else a thousand times, and there it was ! Frayed neutral going into the weatherhead. Thanks again.


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals