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Old 07-31-2014, 08:36 AM   #11
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I had the same problem when attempting to get a full charge in high heat. After opening inverter and battery compartment and extending battery tray ... problem resolved

Thanks for the input. I drove all day yesterday. The batteries were charging from the alternator( I didn't run genset). I got home and plugged in and it did the same thing again. It was showing 12.5v on screen. I guess I will call tech support today at magnum and hope for good news.


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Old 08-03-2014, 07:05 AM   #12
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Klucas, did you get the issue resolved? Craig


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Old 08-03-2014, 08:04 AM   #13
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I think your magnum is toast.
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Old 08-03-2014, 08:46 AM   #14
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Klucas, did you get the issue resolved? Craig


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Craig
I called magnum. They had me pull off the battery lead and let it sit for 20min. He called it a hard reset. Put the lead back on and it was still doing the same thing. So now it looks like I need a new one. Of coarse it is just 4 months out of warranty.
Ken


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Old 08-03-2014, 09:00 AM   #15
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I think your magnum is toast.

You are correct, unfortunately.


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Old 08-03-2014, 09:30 AM   #16
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Craig
I called magnum. They had me pull off the battery lead and let it sit for 20min. He called it a hard reset. Put the lead back on and it was still doing the same thing. So now it looks like I need a new one. Of coarse it is just 4 months out of warranty.
Ken


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Ken,
It would never dare to fail while it was still under warranty! That would be too easy! (LOL!) Call Magnum back and see if they will do anything for you towards replacing the unit.
Tom
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Old 08-03-2014, 10:17 AM   #17
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Ken,

It would never dare to fail while it was still under warranty! That would be too easy! (LOL!) Call Magnum back and see if they will do anything for you towards replacing the unit.

Tom

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I did, they were glad to point me to a few of there qualified vendors. Ha. I do have a plea to FR to see if they can twist a ear for me. Maybe that will work.
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Old 08-03-2014, 08:22 PM   #18
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Ken... based on what you've posted...I wouldn't rule out a battery issue causing the inverter issue. If you drove several hours...the batts should be reading above 13V when you stop...falling to 12.6-7 IF disconnected at the negative line for 12-24 hours.
You might wanna check that before incurring an expensive repair.
Bulk charging on a Magnum ought to be somewhere north of 14.2 V...I'd put a voltmeter on the BATTERY terminals while it is indicating bulk charging and see what voltage you see at the terminals.
If you're not seeing 14+ Volts in bulk mode....and your static voltage readings (or turkey baster readings -hydrometer) aren't indicating a battery state issue...then it's time to have the Magnum in for surgery.
Are the batts wet cell? 6V or 12V?
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Old 08-04-2014, 08:59 AM   #19
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Ken... based on what you've posted...I wouldn't rule out a battery issue causing the inverter issue. If you drove several hours...the batts should be reading above 13V when you stop...falling to 12.6-7 IF disconnected at the negative line for 12-24 hours.
You might wanna check that before incurring an expensive repair.
Bulk charging on a Magnum ought to be somewhere north of 14.2 V...I'd put a voltmeter on the BATTERY terminals while it is indicating bulk charging and see what voltage you see at the terminals.
If you're not seeing 14+ Volts in bulk mode....and your static voltage readings (or turkey baster readings -hydrometer) aren't indicating a battery state issue...then it's time to have the Magnum in for surgery.
Are the batts wet cell? 6V or 12V?

Thanks for your input. The alternator did charge the batteries to about 13v as we drove. After a few days they were about 12.4. The problem is the inverter will not switch to bulk charge. The screen says bulk but the inverter throws a error and stops it. After a few hours on the phone with tech support and doing multiple tests and resets the determination is the control board is bad. The cost to repair that is just about the same as a new one. So a new one is what I will need.


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