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Author Topic: lights flicker  (Read 669 times)


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lights flicker
« on: October 12, 2017, 10:00:56 AM »
I am new to.RVing.
 have a 2004 Coachman class A. When on shore power, the lights flicker. When on battery or generator, they do not. Any idea what is wrong? Thanks !

Kevin Means

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    • Tactical Flying
Re: lights flicker
« Reply #1 on: October 12, 2017, 12:55:27 PM »
Does the problem occur when you're plugged into any A/C source, or only at the one you're plugged into now? Have you recently installed LED lighting? They've been known to flicker under various conditions.

When you switch between shore-power and generator-power, the Automatic Transfer Switch (ATS) is the device that does the actual switching. After A/C power from either source gets through the ATS, it branches off, with one leg going to the converter. The converter supplies D/C power to the lights, but since the lights aren't flickering while on generator-power, the converter seems to be working.

If you haven't switched to LEDs, and you're experiencing this problem when plugged into any A/C source, I would suspect a dirty/bad contact in the ATS itself, or a faulty shore-power cord. It's not unusual at all for the wires in the plug head to fray, make poor electrical contact and ultimately break.


(By the way, welcome to the RVForum!)
« Last Edit: October 12, 2017, 01:07:17 PM by Kevin Means »
2011 Winnebago Tour 42QD
Towing a Jeep Rubicon Unlimited LJ
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(Can't wait to spend more time RVing)
Lakeside, California

Arch Hoagland

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  • Clovis CA
Re: lights flicker
« Reply #2 on: October 12, 2017, 11:17:36 PM »
How do you know if the shore power is good? 

Are you at an RV park and have you tried other shore power pedestals?
2004 Monaco La Palma 36 DBD
W22, 8.1 gas,  Allison 1000 Transmission
7.1 MPG over 90,000 miles

2000 Lexus RX300, 4020lb
U.S. Gear Braking System