Reply
 
Thread Tools Display Modes
Old 11-18-2014, 09:17 AM   #1
Member
 
Join Date: Sep 2014
Location: Monterey, CA
Posts: 91
Inverter Fault

When plugged into shore power I keep getting a fault. Green AC in light blinks once a second and the red fault light blinks 3 times. I've checked in the owners manual for the magnum inverter and it seems like this is an over heating fault. When I open the electrical bay it doesn't seem that hot and even keeping the bay door open doesn't solve the fault. Any suggestions?

David
2011 Berkshire 390BH
__________________

__________________
trekdave42 is offline   Reply With Quote
Old 11-18-2014, 09:51 AM   #2
Senior Member
 
JTN8's Avatar
 
Join Date: May 2013
Location: Virginia
Posts: 619
This happen to me the other day. When my wife plugged the coach in, it didn't seat all the way and turned the power of and on several times until it seated all the way. When I went in I had a fault. I unplugged the coach for a minute the plugged back in (correctly!) and fault was cleared and all works well.... Not sure if this helps but unplugging and resetting is always a first step.

Jason
__________________

__________________
JTN8 is offline   Reply With Quote
Old 11-18-2014, 03:59 PM   #3
Member
 
Join Date: Sep 2014
Location: Monterey, CA
Posts: 91
@JTN8: Thanks for the quick reply! I tried this a few times at the last campground I was at with no luck. Also broke out the voltmeter and was receiving 120V on each leg.

-David
__________________
trekdave42 is offline   Reply With Quote
Old 11-18-2014, 04:12 PM   #4
Senior Member
 
Join Date: Feb 2012
Posts: 1,101
Is the fan running? If the fan has gone bad you could get overheating.
__________________
Ontario

Vibe 6501
1 Prospector Canoe
2 Mtn. Bikes
4 Hiking Boots
Happy Vibe is offline   Reply With Quote
Old 11-18-2014, 04:32 PM   #5
Member
 
Join Date: Sep 2014
Location: Monterey, CA
Posts: 91
@Happy_Vibe: The small fan (what looks like a small 12v computer fan) in the top left of the compartment was not running when I opened the bay door. Although the temperature outside is around 35 degrees at the moment.

-David
__________________
trekdave42 is offline   Reply With Quote
Old 11-18-2014, 04:54 PM   #6
Senior Member
 
Join Date: Feb 2012
Posts: 1,101
I would think the fan should be on if it is getting hot enough to show an error. I would say you have a bad fan or a bad circuit board. It's hard to trouble shoot from this far away.
__________________
Ontario

Vibe 6501
1 Prospector Canoe
2 Mtn. Bikes
4 Hiking Boots
Happy Vibe is offline   Reply With Quote
Old 11-18-2014, 05:45 PM   #7
Senior Member
 
Join Date: Dec 2012
Posts: 1,255
I've had that error code as well. Which magnum do you have? If a reset isn't working did you check your battery sensor connection?

Really low tech, but you might take a pencil eraser to your remote monitor connections as well, if you have one.
__________________
rana is offline   Reply With Quote
Old 11-18-2014, 05:58 PM   #8
Senior Member
 
Lloydg's Avatar
 
Join Date: Mar 2013
Posts: 651
Quote:
Originally Posted by trekdave42 View Post
@Happy_Vibe: The small fan (what looks like a small 12v computer fan) in the top left of the compartment was not running when I opened the bay door. Although the temperature outside is around 35 degrees at the moment. -David
Perhaps if the fan quit working a fault is automatically created regardless of the temperature? Did you notice at times before the fault occurred that the fan was on at times and off at others. If so, I'm full of bologna, but if it always has been on before, then maybe my suggestion is valid. Just a thought.
__________________

Heartland Big Country 3150RL
2013 Ford SD F250 4x4 SC; 6.2
Reese 18K Elite w/slider - Ada, Michigan
Lloydg is offline   Reply With Quote
Old 11-18-2014, 07:54 PM   #9
Cyclone
 
beipers's Avatar
 
Join Date: Nov 2012
Location: Iowa
Posts: 175
For the Magnum inverter in my Berk, there are 2 fans. One is internal to the inverter and controlled by it directly. The other is the exhaust fan on the compartment. That fan is controlled by a heat sensor that is attached externally to the inverter on the end mounting plate. It is added by FR to help keep the compartment cool based on the inverter temp. Are both fans functioning? I would submit that if the compartment fan is running in 35 degree temperatures, the unit is overheating due to an internal fan problem and the unit is much hotter than the surrounding compartment temp. I don't see my compartment fan run unless the temp is above 80.

I'd suggest you call Magnum. They've been good to work with when my unit failed last year.
__________________
2015 SOB 5th Wheel
2013 Chevrolet 3500 CC, DD SRW
1 Wife, 2 Kids under 5

Camping nights: 2015 - 19, 2014 - 39, 2013 - 48
beipers is offline   Reply With Quote
Old 11-22-2014, 03:10 PM   #10
Member
 
Join Date: Sep 2014
Location: Monterey, CA
Posts: 91
Thanks everyone for the responses. I noticed that when the fault is on the fan mounted to the inside of my electrical bay was not on. Removed the fan and when I tested it found that it was bad. Hopefully once the replacement fan is installed the problem will go away.
__________________

__________________
trekdave42 is offline   Reply With Quote
Reply

Tags
inverter

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 Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 08:59 PM.