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Old 09-17-2022, 06:51 AM   #1
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Light flickering

Hello fellow campers
Once agian I turn to you guys for some expert advise. Just started happening when we run the water pump the lights flicker. Light and pump all 12v. Does not matter if we are on shore power on boondock. I thinking loose connection? Does anyone have an idea where to start looking? everything else seem to work fine 2v tv lights and frig. Only happens when pump runs.
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Old 09-17-2022, 06:53 AM   #2
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Do you have a dimmer connected to these lights?
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Old 09-17-2022, 07:19 AM   #3
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Are you talking about LCD type lights or incandescent type lights here? There is a difference in the trouble shooting required.
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Old 09-17-2022, 07:27 AM   #4
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OPs rig is a 2022. I'm betting they are LEDs.
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Old 09-17-2022, 07:59 AM   #5
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All the lights are led and no there is no dimmer.
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Old 09-17-2022, 07:55 PM   #6
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It would be useful to know what the battery voltage is. Can you measure it, both with lights on alone and then pump and lights? You need to know if the problem applies to the whole 12 volt system or only individual circuits.

Maybe the batteries have failed or stopped charging, and the dimming lights during pump loading is a manifestation of that.
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Old 09-17-2022, 09:45 PM   #7
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Strobopump

Your issue is the Command Electronics puck lights. They are very very sensitive to voltage changes which is exactly what your electric guzzling Shurflo 4008 causes.

A partial solution is to replace them with these: KICORED LED Ceiling Lights RV LED... https://www.amazon.com/dp/B07TN6945F...p_mob_ap_share
They have better heat dissipation and are less susceptible to voltage changes.

or, you could consider an accumulator which will reduce pump cycling.
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Old 09-18-2022, 11:14 AM   #8
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Originally Posted by Duckogram View Post
Your issue is the Command Electronics puck lights. They are very very sensitive to voltage changes which is exactly what your electric guzzling Shurflo 4008 causes.

A partial solution is to replace them with these: KICORED LED Ceiling Lights RV LED... https://www.amazon.com/dp/B07TN6945F...p_mob_ap_share
They have better heat dissipation and are less susceptible to voltage changes.

or, you could consider an accumulator which will reduce pump cycling.
Whoda thunk it? FR is now installing ceiling lights that don’t work for their intended purpose in 2022 Sunseeker models? Mine was built in 2019. I never had any trouble with LED light flicker. I don’t know the brand/model of the lights, but now I’m eager to go look.
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Old 09-18-2022, 06:44 PM   #9
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My Friend Flicker

The CE lights came in my 2017 build as well. I did not hear anything about a supplier change but that could happen regularly these days. I would also not rule out the possibility of a faulty ground somewhere along the line from the lights to the battery as that could cause similar symptoms with led circuitry. However, since the OP specified that it was only during water pump operation, the lights are a more likely choice. Also contemplated was that FR did change suppliers and new one is worse than CE.
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Old 09-18-2022, 06:55 PM   #10
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Per prior posts, the OP picked up their Sunseeker in March, 2022. OP reports in this thread that the light flickering just started happening. There could be a number of reasons for the problem, but as I suggested before, knowing the battery voltage now under various conditions would be a place to start the investigation.
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Old 09-19-2022, 07:15 AM   #11
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Quote:
Originally Posted by BehindBars View Post
Per prior posts, the OP picked up their Sunseeker in March, 2022. OP reports in this thread that the light flickering just started happening. There could be a number of reasons for the problem, but as I suggested before, knowing the battery voltage now under various conditions would be a place to start the investigation.
Indeed it would. However the OP also reports that the lights flicker on battery and shore power.
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Old 09-19-2022, 12:43 PM   #12
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Indeed it would. However the OP also reports that the lights flicker on battery and shore power.
I noted that. Thus it would be a great time to measure battery voltage to see if the converter might have suddenly stopped supplying 12 volts and stopped charging the batteries, and now they’re running a total loss 12 volt system. Hence now the water pump load may be causing enough voltage drop to dim the lights.
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Old 09-19-2022, 03:23 PM   #13
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[QUOTE=BehindBars;278514ÖÖÖ.to dim the lights.[/QUOTE]


All of a sudden now, I canít get that Donna Summer song out of my head.

And here I thought disco was dead.
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Old 09-19-2022, 06:12 PM   #14
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Originally Posted by kenandterry View Post
All of a sudden now, I canít get that Donna Summer song out of my head.

And here I thought disco was dead.
This should help: https://youtu.be/ybXrrTX3LuI
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Old 09-22-2022, 09:56 AM   #15
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All of the overhead lights are LED and as another member noted they come from Command. We have used them for years so we know its not an inferior product as someone so kindly posted. Could be a bad light or bad connection.
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Old 09-29-2022, 06:47 PM   #16
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Flickering lights

Weak battery. Can't handle the load of the pump and the lights at the same time.
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Old 09-29-2022, 09:01 PM   #17
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For what it’s worth, the OP left this conversation on the first day, 12 days ago. We may never know the final solution to the problem.
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Old 10-02-2022, 07:15 AM   #18
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Hmm..
There is some criticial information missing here, but let me make assumptions:
You have LED lighting, with no dimmers.
You have checked the connections on your electrical panel in the camper, and everything is tight/clean.
My guess is that either your house battery is weak, or your converter is not able to supply enought current for everything when your pump kicks in.

I noticed the same thing when boondocking a few weeks ago. My house battery is in poor condition. Since the converter pulls on the battery, even when you have shore power, this is probably the culprit.

You could put a volt-meter on your 12v supply at the power panel. Then, when the pump kicks in watch for a voltage drop of 1-2 volts. Also, with the house battery disconnected, check it's output voltage. With no load it should be 12.6 volts or above.
When the battery is connected to the house, and you have shore power the voltage on the battery with no load should approach 14v (13.6-8) when charging.
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Old 10-05-2022, 12:44 PM   #19
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Sorry guys alot been going on around here,haven't been out or able to work in the motorhome lately. I like to thank you for a the great information. Did check the connection, and it doesn't seem to be as bad . Possibly was just loose . I am so thankful for all your comments and help . I let you guys know if i find anything more about it
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