Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 04-14-2010, 08:35 PM   #1
Junior Member
 
Join Date: Apr 2010
Location: Ottawa
Posts: 2
Humming Invertor

I just purchased a 93 Bounder and when I plugged it to 110V, the invertor humms quite loudly. Has anyone ran into this problem and hopefully solved it? Thanks for reading

Mark
__________________

__________________
rhsauto2003 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-14-2010, 08:59 PM   #2
Senior Member
 
RJay's Avatar
 
Newmar Owners Club
Join Date: Jan 2010
Posts: 4,589
Are you sure it is an inverter and not a Magnatek converter?
__________________

__________________
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.
RJay is offline   Reply With Quote
Old 04-15-2010, 03:44 AM   #3
Community Moderator
 
RV Wizard's Avatar


 
Country Coach Owners Club
Appalachian Campers
Gulf Streamers Club
Join Date: Mar 2000
Location: Chattanooga, Tn.
Posts: 12,062
Mark, welcome to iRV2.com. We are glad to have you join us here and we look forward to reading of your adventures and experiences. I am sure you will enjoy the website and forums.
Were the house batteries low on charge before you plugged it in? Do you have a multimeter and know how to use it? If so, check the voltage of the bank when the unit is un-plugged and generator is off; and then again with shore power or generator running; you should see an increase in voltage. If the battery bank was very low, the charger will be working hard to recharge them and louder humming is normal.
If you begin to notice the batteries boiling or getting hot; you may have a bad cell in the bank causing the charger to do what it is. Have the batteries tested if you cannot test them yourself. If bad; replace and recheck the operation of the charger; be it free standing, converter or inverter combination. Let us know what you find. Thank you and good luck.
__________________
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
RV Wizard is offline   Reply With Quote
Old 04-15-2010, 08:41 AM   #4
Junior Member
 
Join Date: Apr 2010
Location: Ottawa
Posts: 2
inverter hum

Thanks agian, I am new to this but this is a great source. I will check the battery voltages and repost my findings.

Mark
__________________
rhsauto2003 is offline   Reply With Quote
Old 04-15-2010, 09:14 AM   #5
Senior Member
 
RJay's Avatar
 
Newmar Owners Club
Join Date: Jan 2010
Posts: 4,589
You may want to purchase a battery tester to test the specific gravity of each cell. It's a better indication of the batteries' condition than a voltage test and they are available at most autoparts stores.


The hum you hear is called magnetostriction and is a function of an energized AC transformer. It's normal but annoying. Magnetek converters a particularly subject to this and most people put up with it or replace them.
__________________
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.
RJay is offline   Reply With Quote
Old 04-15-2010, 10:07 AM   #6
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,792
I too will ask what type of inverter or converter you have.. Any device with a power transformer can do this... And alas, there is no practical cure save replacement and then I'd recommend a different make and or model.

Now.. Other posters seem to think you might have a Magnetek 6300.. If you do I seriously recommend a replacement.. That is a single stage converter/power supply (NOT an inverter) and being a single stage it either never fully charges your storage battery or it overcharges it. .there is no in between.

A good 3-stage such as a Xantrex Prosine (Which is an inverter, and a very good one at that, it's also a 3-stage charger) or a Progressive Dynamics 9200 series.... The batteries will pay for the upgrade.. Believe it or not, by lasting much, much, longer (Assuming the converter does not mess up, which can happen)
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 04-15-2010, 11:08 AM   #7
Senior Member
 
hamguy's Avatar
 
Workhorse Chassis Owner
Join Date: Nov 2003
Location: Mesa, AZ USA
Posts: 1,806
Quote:
Originally Posted by rhsauto2003 View Post
I just purchased a 93 Bounder and when I plugged it to 110V, the invertor humms quite loudly. Has anyone ran into this problem and hopefully solved it? Thanks for reading

Mark
It is almost certainly a magnatec battery killer. Yank it out and replace it with a PD9260 3-stage convertor. Goto - The 12volt Side of Life (Part 1)
for a great primer on battery maint.
__________________
Wretched excess is just barely enough.

2002 Itasca Suncruiser - WH Chassis - 35U - 2006 Jeep Liberty
hamguy is offline   Reply With Quote
Old 04-15-2010, 03:02 PM   #8
Senior Member
 
RVee'r's Avatar
 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Nov 2009
Location: Southern California
Posts: 150
You guys crack me up with your comments about the Magnatec 6300. It's neither a battery killer nor is there no "in between". I still have one (do you?) in my old '87 Fleetwood and it works just fine, thank you. Is is a linear model that has been replaced by modern technology? Of course. And I will ultimately replace/upgrade mine in due time, but it's not at the top of my list.

Apparently there's an option known as "Option C". From the original users manual:

Units with Option C contain an automatic, solid-state Battery Charging Section. When 120 VAC power is connected to Power Center, the Charging Section will automatically “sense” the condition of RV battery. If it is below “full charge,” the Charging Section will start charging the battery.

If RV battery has been drawn down quite low, it will be charged at a relatively high amperage rate. If battery has not been severely drained, it will be charged at lower amperage rate. The rate of charge will decline as the battery reaches “full charge”. After battery reaches “full charge”, the Charging Section will drop back to “maintenance” level. It will not resume active charging until battery again falls below “full charge”.

Mine must have this wonderful Option C because my batteries are just fine, after 4-5 years and have not been killed or overcharged yet.

How many had or didn't have this option, I dunno. But it seems these misconceptions about the 6300 series are the RV converter version of "Reefer Madness"

Bob
__________________

__________________
'87 Fleetwood Tioga Arrow

If you're in a hurry, you shouldn't be RV'ing
RVee'r is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Thermocouple for Invertor Bay chiefdave Monaco Owner's Forum 3 02-23-2010 11:07 AM
Invertor upgrade ARROWVP38 Winnebago Industries Owner's Forum 5 02-22-2010 09:04 AM
What size invertor? Abnmarine MH-General Discussions & Problems 11 12-25-2009 08:15 AM
Invertor revisited --- pure sine wave cwg Newmar Owner's Forum 11 01-13-2007 12:25 PM
which invertor and can I do this?? Big_John RV Systems & Appliances 4 02-17-2005 04:54 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:50 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.