Jayco RV Owners Forum

Thread Tools Display Modes
Old 09-03-2014, 09:37 AM   #1
Junior Member
Join Date: Jul 2014
Location: Merritt Island
Posts: 9
Angry On board 30 amp breaker throws

I have a 2010 Grey hawk a recent purchase. 1st outing with AC on and using microwave we threw the on board 30 amp breaker, went to reset and the area around the 30 amp breaker in breaker box was veery warm. Is this normal heat and shouldn't the the breaker handle this amount of power usage. Not sure if breaker is bad or not how to test.

Thank you.

FireCapt is offline   Reply With Quote
Old 09-03-2014, 10:21 AM   #2
Join Date: Jun 2013
Posts: 70
Had a 2011 Greyhawk. It had 2 issues. AC blew the 30 amp breaker. Went to check it found a wire loose in the box. It was also warm. Fixed that the breaker blew anyway. Put in a new breaker no more problems.

Watch your CUT and WAG
greyhawk885 is offline   Reply With Quote
Old 09-03-2014, 10:22 AM   #3
Senior Member
RoyBraddy's Avatar
Join Date: Sep 2011
Location: King George
Posts: 2,123
When you add up all of the on-board 120VAC appliances wattage numbers you will find it does indeed exceed the 30AMP MAIN BREAKER capacity.

You may have been running too many things at the same time or perhaps the incoming 120VAC from the pedestal is somewhat on the low side. This will also make your appliances draw more current...

If the camp ground pedestal 30AMP Service connection is worn and not making good contact with your shore power plug will also cause this same thing...

I keep a good watch on the 120VAC status by using an inexpensive RV 120VAC PLUG-IN AC VOLTMETER. This model has the SAFE ZONE painted in GREEN and we can do a quick glance at the meter before we turn on something that is high wattage like the Microwave when the Air Conditioner was already running...

Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
RoyBraddy is offline   Reply With Quote
Old 09-03-2014, 11:40 AM   #4
Junior Member
Join Date: Jul 2014
Location: Merritt Island
Posts: 9
Thank you all for the quick response I will check on all the suggestion you have mentioned.
FireCapt is offline   Reply With Quote
Old 09-03-2014, 11:52 AM   #5
Senior Member
tnchuck100's Avatar
Join Date: Jun 2012
Location: Sparta, TN
Posts: 1,131
In most cases 30 amps will cover the air conditioner and the microwave. What usually gets you unexpectedly is the water heater decides it wants to run. That will take you over the edge and trip the breaker. That has only happened to me once. Most of the time the water heater and the microwave will not be on at the same time.
Chuck - Sparta, TN
2012 Jay Flight 22FB, 2 x Honda EU2000i
2013 GMC Yukon XL Denali AWD

EDUCATION is what you get when you read the fine print.....
EXPERIENCE is what you get when you don't.
tnchuck100 is offline   Reply With Quote
Old 09-03-2014, 03:10 PM   #6
Site Team
Crabman's Avatar
Join Date: Nov 2010
Location: Virginia`s Eastern Shore
Posts: 13,880
A coffee maker can also throw you over the limit if AC and microwave are running...Have tripped mine a few times.

2004 Chevy 2500HD Crew Cab 6.0l, 4.10r

2010 Jayco Jayflight 28BHS
Reese Strait Line with Dual Cam
P3 Brk controller
Crabman is offline   Reply With Quote
Old 09-03-2014, 04:51 PM   #7
Senior Member
Join Date: Jul 2014
Posts: 183
This past weekend we had the AC, coffee pot, fridge and possibly the microwave all running at one time or another, no breaker issues. Not sure if all of the above were going at the exact same time, but a definite possibility. I would check the breaker for a loose wire, and probably change it out. They can go "bad" so to speak.

'08 Greyhawk 31SS
jimp is offline   Reply With Quote

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 11:38 PM.

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