GlennWest Posted May 3, 2023 Report Share Posted May 3, 2023 (edited) When I hooked up my shore power to my inverters, I installed this surge guard. It works just fine. But just this week it has started making a noisy. It comes and goes. It almost sounds like a bus coming and going. It will quit after while. It has done this twice so far. Just this morning went out and found what it was. Have display inside and no faults or anything. Can a relay make this noise. like it internally vibrate for a short time Edited May 3, 2023 by GlennWest Quote 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
oldjohnt Posted May 3, 2023 Report Share Posted May 3, 2023 Glenn, electronic devices aren't my cup o tea, but it may help the other electronic types and experienced users here, would you say the buzzing is 60 cycles in frequency ??????? John T Quote Link to comment Share on other sites More sharing options...
GlennWest Posted May 3, 2023 Author Report Share Posted May 3, 2023 (edited) Just do it in the mornings. Have my inverters set to change to shorepower at 51 volts. This happens in the early morning hours. This is when this starts. But not every time. So I thinking when the 3550 starts sending current thru it does this. After an hour or so stops. It loud enough that we hear it inside. Edited May 3, 2023 by GlennWest Quote 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
GlennWest Posted May 4, 2023 Author Report Share Posted May 4, 2023 Found problem. My mount was a piece of plywood screwed to a piece of thin plywood. It vibrated. Didn't think it would make that much movement to cause that. Removed it and bolted to floor. did place a 2X6 on floor to raise up. Quote 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
Kirk W Posted May 4, 2023 Report Share Posted May 4, 2023 42 minutes ago, GlennWest said: Found problem. Great catch! Anything that has a transformer has the potential of doing that but it isn't something that I had thought of. Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
RV_ Posted May 4, 2023 Report Share Posted May 4, 2023 1 hour ago, GlennWest said: Found problem. My mount was a piece of plywood screwed to a piece of thin plywood. It vibrated. Didn't think it would make that much movement to cause that. Removed it and bolted to floor. did place a 2X6 on floor to raise up. 👍👍🖖 Quote RV/Derekhttp://www.rvroadie.com Email on the bottom of my website page.Retired AF 1971-1998 When you see a worthy man, endeavor to emulate him. When you see an unworthy man, look inside yourself. - Confucius “Those who can make you believe absurdities, can make you commit atrocities.” ... Voltaire Link to comment Share on other sites More sharing options...
oldjohnt Posted May 5, 2023 Report Share Posted May 5, 2023 Thanks for the feedback, the buzzing may have been 60 HZ ??? A changing magnetic field in proximity with metal can cause such,.... John T Quote Link to comment Share on other sites More sharing options...
GlennWest Posted May 5, 2023 Author Report Share Posted May 5, 2023 (edited) Well it is still noisy. Believe it is louder now. I may bypass that unit and use the pedestal one. Fairly sure it is faulty. Researched and none reported doing like mine. This morning when it switched over loud thud and unit shut down. My batteries provided power for us but display dead. About an houre later came back on. Had fault and show hi voltage on L1. But when it came on started that thudding noisy. Do this for about an hour. On and off with noisy. It is loud enough to hear even with tv going. There is a contractor in there that engages if power clean. Think it is not closing good. Edited May 5, 2023 by GlennWest Quote 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
GlennWest Posted May 5, 2023 Author Report Share Posted May 5, 2023 Well removed it and bypassed it this evening. Called Southwire and left message. Quote 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
Kirk W Posted May 5, 2023 Report Share Posted May 5, 2023 3 hours ago, GlennWest said: Called Southwire and left message. We will be very interested to hear what they say. Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
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