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10-15-2017, 11:27 AM
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#1
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Member
Join Date: Jul 2016
Posts: 40
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Inverter fault. Heating up?
Running generator with inverter off and get fault a few minutes later. Manual indicates fault caused by over heating. I checked the vents on the inverter box and they are clear. Thinking a fault in an appliance is a possibility? Had the kuerig on....Any ideas on how to troubleshoot? 2011 Berkshire 360 FWS
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10-15-2017, 11:40 AM
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#2
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Senior Member
Join Date: Sep 2012
Posts: 8,055
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What device is faulting?
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10-15-2017, 11:53 AM
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#3
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Member
Triple E Owners Club
Join Date: May 2015
Location: Were I Am Parked
Posts: 47
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If your inverter is overheating, then possibly the cooling fan could have failed.
If you are running the generator, why would you be running off the inverter?
Do you have a built in Genset or are using an external genset.
Definitely need more information from you.
Have your wife read what you are going to post, see if she can figure out what you mean.
__________________
2004 Triple E 3903 Empress 400 ISL
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10-15-2017, 12:20 PM
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#4
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Senior Member
Monaco Owners Club National RV Owners Club Workhorse Chassis Owner
Join Date: Dec 2013
Location: St. Charles MO
Posts: 4,920
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I think it could be the fan too. It's charging as necessary when the gen is on and the inverter is off.
__________________
2002 Monaco Windsor 40PST 2019 Equinox 1.5L, Blue OX Aventa LX tow bar, Roadmaster EZ5 baseplate, SMI Stay-In-Play Duo, TireSafeGuard TPMS
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10-15-2017, 01:00 PM
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#5
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Senior Member
Tiffin Owners Club Appalachian Campers Mid Atlantic Campers Coastal Campers Freightliner Owners Club
Join Date: Jan 2015
Posts: 1,622
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When you are running on shorepower or generator, your Magnum or Xantrex "inverter" is doing two things:
- the charger/converter part of it is recharging the house batteries, and
- it is "Passing thru" shorepower, via it's internal transfer switch, to the circuits which are powered by the inverter (when shorepower is off).
Of those two functions, the charging function is generating the most heat.
So if this was my coach I'd be checking a couple things:
- make sure the fan is turning and blowing/dissipating heat
- make sure that nothing is blocking the air flow (which apparantely you've already done)
- make sure your house batteries are good, and able to accept normal charging. If you have a bad battery, the charger function will really be working hard to try and charge it.
- check the electrical connections to make sure they are tight (with all power and batteries off of course).
Out of curiosity, how many DC amps is it saying the charger is charging the house batteries?
__________________
DaveB, Raleigh, NC
2015 Tiffin RED 33AA, w/Honda CRV
VMSpc, Magnum BMK/ARC50
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10-15-2017, 04:18 PM
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#6
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Member
Join Date: Jul 2016
Posts: 40
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I don't hear any fan blowing from inside the magnum inverter. I unplugged the 1500 Watt Kuerig coffee maker and the generator ran good with both ACs on. No Fault on the inverter.
Do you pull the cover off the top of the inverter to check the fan? Dumb question but I don't see mention of a fan in the manual.
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10-15-2017, 04:30 PM
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#7
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Senior Member
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 9,750
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I only hear the fan running on my Magnum inverter if the batteries have been run down, and the charger is either bulk charging, or absorb charging.
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Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
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10-15-2017, 04:54 PM
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#8
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Senior Member
Tiffin Owners Club Appalachian Campers Mid Atlantic Campers Coastal Campers Freightliner Owners Club
Join Date: Jan 2015
Posts: 1,622
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Quote:
Originally Posted by bdunningsr
I don't hear any fan blowing from inside the magnum inverter. I unplugged the 1500 Watt Kuerig coffee maker and the generator ran good with both ACs on. No Fault on the inverter.
Do you pull the cover off the top of the inverter to check the fan? Dumb question but I don't see mention of a fan in the manual.
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The inverter doesn't power the AC's, only the generator or shorepower, so the only thing that is showing (so far) is that the generator is providing power, to at least one power leg of the breaker box.
1.) When the generator is running, does the charger say that it is charging the house batteries, and if so, how many DC amps are the batteries being charged? (This will confirm whether the charger is getting power, and will give us a sense as to how discharged your house batteries are).
2.) What is the make and model # of your inverter/charger ? (Will look up your manual and check on fan)
3.) When the generator is running, do all of your devices have ac power? Both A/C's, mwave, washer/dryer, h2o heater, etc. (This will confirm that both power legs have power, and therefore your Magnum/Xantrex should also have correct power input.)
__________________
DaveB, Raleigh, NC
2015 Tiffin RED 33AA, w/Honda CRV
VMSpc, Magnum BMK/ARC50
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10-24-2017, 07:31 PM
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#9
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Member
Join Date: Jul 2016
Posts: 40
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Thanks. I will check for fan sound next time the inverter displays bulk or absorb charging. So far no issues since I unplugged the Kuerig 1500 watt coffee maker. Thks for everyone's replies!
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10-26-2017, 06:14 PM
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#10
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Senior Member
Monaco Owners Club National RV Owners Club Workhorse Chassis Owner
Join Date: Dec 2013
Location: St. Charles MO
Posts: 4,920
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Quote:
Originally Posted by bdunningsr
Thanks. I will check for fan sound next time the inverter displays bulk or absorb charging. So far no issues since I unplugged the Kuerig 1500 watt coffee maker. Thks for everyone's replies!
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Instant coffee might fix it.
__________________
2002 Monaco Windsor 40PST 2019 Equinox 1.5L, Blue OX Aventa LX tow bar, Roadmaster EZ5 baseplate, SMI Stay-In-Play Duo, TireSafeGuard TPMS
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12-15-2018, 07:13 PM
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#11
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Member
Join Date: Jul 2016
Posts: 40
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Quote:
Originally Posted by Kiawah
The inverter doesn't power the AC's, only the generator or shorepower, so the only thing that is showing (so far) is that the generator is providing power, to at least one power leg of the breaker box.
1.) When the generator is running, does the charger say that it is charging the house batteries, and if so, how many DC amps are the batteries being charged? (This will confirm whether the charger is getting power, and will give us a sense as to how discharged your house batteries are).
2.) What is the make and model # of your inverter/charger ? (Will look up your manual and check on fan)
3.) When the generator is running, do all of your devices have ac power? Both A/C's, mwave, washer/dryer, h2o heater, etc. (This will confirm that both power legs have power, and therefore your Magnum/Xantrex should also have correct power input.)
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I have the Magnum MM1212 inverter which has a 70A internal battery charger. My meter apparently only measures AC amps so not sure how many DC amps it is pulling to charge the batteries. What I do know is that my alternator was bad and my batteries were probably getting pretty well drained by the time I arrived at my destination. I have since replaced the alternator and no longer have this problem
Hoping this helps with the inverter heating up fault deal. Will update after my dry camp adventure coming up for the new year ..
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