Jayco RV Owners Forum

Thread Tools Display Modes
Old 08-08-2016, 10:14 PM   #1
Junior Member
Join Date: Aug 2016
Location: Edmonton
Posts: 1
Question High pitched sound from breaker.

I have a high pitched sound from a select breaker. When the breaker is off, the noise stops. Unfortunately, it's the breaker that controls the plugsand lights in the master and the bunk house as well as the tv. I have a 2010 Jayco jay flight g2. We have a brand new battery.

Lminnes73 is offline   Reply With Quote
Old 08-08-2016, 10:32 PM   #2
Senior Member
BuddyRay's Avatar
Join Date: Jan 2016
Location: Decatur
Posts: 435
Hmmm - are all the LED lights working? I've never seen it in an RV - but I have seen a problem in home lighting where the tiny circuit in an LED light goes bad. These circuits reduce the 12v DC down to 5v DC usually by using an oscillator (called a switching power supply) to switch the current on/off really fast and then use a capacitor to smooth out the current again. These circuits need a filter to keep the oscillations from getting back into the powerline. Early LCD's didn't have those filters and as a result used to play havoc with electronics (like TV's and Radio's) on the same circuit. I wonder if you have a bad LED light that is causing the sound.

Buddy Ray - Atlanta
Jayco Eagle HT 26.5RLS
Ford F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch
BuddyRay is offline   Reply With Quote
Old 08-09-2016, 06:16 AM   #3
Senior Member
us71na's Avatar
Join Date: Jun 2013
Location: McKean, PA
Posts: 333
Is your 12 volt converter on that circuit? Converters are known to make noise.
2011 Skylark 21FKV
us71na is offline   Reply With Quote
Old 08-09-2016, 06:54 AM   #4
Senior Member
Join Date: Aug 2013
Location: NC
Posts: 924
The converter uses PWM (pulse width modulation) to regulate the voltage. This can be a source of this type sound. Most often the sound is only heard when there is no load on the circuits like at night when everything is turned off. This is due to the frequency dropping into an audible range. It's normally way above human hearing range. Try plugging in something like a drop light or hair dryer and see if it affects the sound when it's switched on.
No man has a good enough memory to be a successful liar. Abraham Lincoln

2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch
eldermike is offline   Reply With Quote

#breaker #noise

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 12:46 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.