Author Topic: inverter breaker tripping at night  (Read 281 times)

Jason Worman

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inverter breaker tripping at night
« on: April 07, 2021, 05:21:37 PM »
Hi all,

I have a weird thing happening, the breaker to our inverter trips periodically and only at night. It shuts off inverter but no other loss of power. It is completely random, can go weeks on end and suddenly it will trip. We have the Xantrex Freedom 458. I will reset breaker and we will be good for quite some time  Puzzled

Jason Worman
2018-
91 Contessa 36 Foot
3116 CAT

Bill Lampkin

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Re: inverter breaker tripping at night
« Reply #1 on: April 07, 2021, 05:31:53 PM »
Two things to check: Unplug battery temp sensor from inverter, if installed. A bad sensor can cause the inverter to do weird things. 2. Could be sign that you need to snug up a wire terminal on the AC side (shore power input side). Unplug from shore power, turn off the generator and snug up the AC terminals. Check the Load side AC terminals too.
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Jason Worman

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Re: inverter breaker tripping at night
« Reply #2 on: April 07, 2021, 05:42:32 PM »
Bill,

Thank you for the input, will try those two things and see what happens

Jason
2018-
91 Contessa 36 Foot
3116 CAT

Bill Lampkin

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Re: inverter breaker tripping at night
« Reply #3 on: April 07, 2021, 06:06:02 PM »
Jason, Might be a good time to snug up the wire terminals on your main breaker panel too! Can't hurt, unless you forget to pull the shore power cord first!!
2005 Patriot Thunder Lexington, 3 slides
40' tag axle (short wheelbase)
525 hp C13

"Liberty is not the power to do what one wants, but it is the desire to do what one can" J-P Sartre; inscription in base of Statue of Liberty

Fred Brooks

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Re: inverter breaker tripping at night
« Reply #4 on: April 08, 2021, 01:58:31 PM »
  Jason, You may take inventory of everything that is plugged in on that circuit, random tablet, phone, blu-tooth charger and the like. Even those mini electric heaters stashed in a corner. It could also be the breaker itself. If they have tripped excessively, they start to lose their value. Intermittent issues can really be frustrating and a 30 year old coach can demand your attention. Soldier on.... Fred
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Keith Phillips

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Re: inverter breaker tripping at night
« Reply #5 on: April 08, 2021, 07:51:19 PM »
One other place to check is where the breaker snaps on to the bus bar, mine had corroded or had been arcing and was causing a problem. I installed a new breaker and cleaned up the bus bar and that fixed my problem, after making sure NO electricity to the coach including the inverter. Safely.
Keith & Ann Phillips
1992 Beaver Marquis 325 hp 3176 Cat (Jan 2017 -)
1991 Beaver Baronet  250 hp 3116 Cat (Feb 2014-Jan 2017)
USCG CWO4 Ret.
Graham WA

Jason Worman

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Re: inverter breaker tripping at night
« Reply #6 on: April 08, 2021, 11:08:40 PM »
Keith

Where is your bus bar located?
Jason
2018-
91 Contessa 36 Foot
3116 CAT

Jason Worman

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Re: inverter breaker tripping at night
« Reply #7 on: April 08, 2021, 11:13:35 PM »
Hi all

Thank you again for the info, will take inventory of that is plugged in. Thr only thing that shuts off is the inverter itself. No lights, devices, heater or anything else lose power.

Jason
2018-
91 Contessa 36 Foot
3116 CAT

Keith Phillips

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Re: inverter breaker tripping at night
« Reply #8 on: April 09, 2021, 03:29:58 AM »
The main breaker box, with all power off, take the cover off and the circuit breakers are exposed. You can check the screws that hold the wires for tightness but to check the bus bar connection disconnect the wires then you should be able to pull the end of the circuit breaker without the wires out and that releases the breaker. The connection where the breaker snaps on to the bus bar is the location of my problem. Remember Check, Check, and check to make sure there is no voltage in the circuit breaker panel.
Keith & Ann Phillips
1992 Beaver Marquis 325 hp 3176 Cat (Jan 2017 -)
1991 Beaver Baronet  250 hp 3116 Cat (Feb 2014-Jan 2017)
USCG CWO4 Ret.
Graham WA