Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 10-27-2013, 01:00 PM   #1
Junior Member
 
Join Date: Oct 2013
Location: Central Canada
Posts: 7
Relay switch solenoid

I have had the battery relay solenoid replaced in Aug. and now can hear it with a high pitch whine. Have been plugged into 50 amp for five days now and it seems to be working fine. We have an 08 H/R Endeavour. Has anyone ever had this experience. This my first post but know we are going to really enjoy this fantastic site!
RayCin
__________________

__________________
RayCin 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 10-27-2013, 01:57 PM   #2
Senior Member
 
clyon51's Avatar
 
Monaco Owners Club
Join Date: Mar 2012
Location: Arizona West RV Park, Yuma, Az
Posts: 4,113
A solenoid does not whine. It only 'clunks' when connecting or disconnecting the two battery banks. I suspect you are hearing the converter or inverter.
__________________

__________________
John & Clare Lyon
2007 43.5' Monaco Dynasty Palace III (All Electric)
Towd: 2011 Chevy Equinox
clyon51 is offline   Reply With Quote
Old 10-27-2013, 02:12 PM   #3
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 16,208


The whine is produced by 60 cycle 120 v AC. The battery solenoid works on 12 v DC and won't whine. It must be in your converter, inverter, or or some other AC source. Try turning off power at the pedestal then back on, see if it's still whining.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 10-27-2013, 02:19 PM   #4
Junior Member
 
Join Date: Oct 2013
Location: Central Canada
Posts: 7
Ok thanks for your knowledge. I will try that when we get back to the coach !
__________________
RayCin is offline   Reply With Quote
Old 10-28-2013, 06:53 PM   #5
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,787
The O/P said "high pitched whine"

I will cover several possible sounds.

1: Humm (low pitched, just above 2-3 octaves BELOW middle C on your piano... AC humm. 3 octives is 55 HZ, 2 octaves 110 hz. (60 HZ full wave rectived) I would not call either of those HIGH PITCHED.

Alternator, Very high pitched, often over at the right side of the keyboard on the piano, 1,2,3, thousand HZ or more.

I would call that a high pitched whine.. However the solenoid should not make it, Most battery isolator solenoids have NO POWER on the coil except when changing state (Emergency start are different).

Finally we get contact hiss.. If the contacts are not doing well it can hiss like a snake.. This can be a HIGH PITCHED sound. And it's not good when it happens.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 10-28-2013, 08:11 PM   #6
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 5,555
The isolator relay on the 08 Endeavor has full charging/battery voltage on the contacts when activated by the Bird circuit.

Look at the large solenoid that was replaced. There is a small white wire and a small purple/violet wire that controls it.

Disconnect the white wire and the solenoid should go clunk as it de-activates. If the humming goes away there you are. However, I suspect the noise is from the next door compartment to the left as you are facing the batteries. Inside is the converter/inverter.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 10-29-2013, 12:38 PM   #7
Junior Member
 
Join Date: Oct 2013
Location: Central Canada
Posts: 7
Yep that did it. Heard the clunk and whine stopped. I have put the white wire back on again. Do I assume then when solenoid closes next time we could have the same issue. I wonder if I got the one in a million faulty solenoid? Thanks YC1 and others for your help!
__________________
RayCin is offline   Reply With Quote
Old 10-29-2013, 04:14 PM   #8
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 5,555
Try this. Switch the wires. Put the purple where the white is, white where the purple is.

Keep in mind the purple has voltage on it and will pop a fuse if it comes in contact with ground.

Try to NOT be touching the wires when they contact the connection,. You can get a harmless jolt from the relay energizing.

If it still buzzes then replace it.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 10-29-2013, 06:01 PM   #9
Senior Member
 
distaff's Avatar
 
Join Date: Dec 2009
Posts: 1,191
I posted this recently on the Monaco forum. I had some issues with my isolator circuit. First problem was a cheap relay had failed ($6 to replace) that let both the BIRD and boost switch on the dash activate the Big Boy Isolator Relay.

With the thing working again I had some funny meter readings. When doing nothing I have about 8v on the activation wire into the Big Boy, and when it is activated by the BIRD I have about 3v. The documentation calls for 12v and 6 amps to activate. This seemed REALLY odd to me so I called the Intellitec support line for RVs. Turns out this is MM RV Electronics in Ohio City.

Chris (the person I spoke to) was very helpful. When you press the boost switch it sends 6 amps and 12v to the Big Boy as long as you hold down the boost switch. There will be no humming but you will hear a big clunk as the relay closes. If you keep the boost switch depressed more than 30 seconds you will burn out the electromagnet that closes your Big Boy. The ones used in our coaches are NOT the latching model (referred to as a Big Boy Battery Disconnect Relay by Intellitec and with a different part number but identical to look at) and you can't just substitute a latching model if you use a BIRD unit to control it.

When the BIRD unit decides to activate the Big Boy it first sends 12v and 6 amps for a fraction of a second to cause the relay to close (big burst of power to activate the electromagnet), then it begins modulating the voltage and current to keep the relay closed but avoid burning out the electromagnet. This is the loud humming noise we hear. It is NOT the Big Boy, it is the BIRD unit. If you have a meter on the inputs to the Big Boy when the BIRD unit fires it you will see a spike of 12v, then 3v to 4v. At the same time you will see a difference in voltage across the high current connections drop to zero as the relay closes and the voltages are equalized.

None of this is described in either the non-latching Big Boy or BIRD documentation. The humming is normal as are the strange voltage readings (strange until you know what is really going on).
__________________
Paul
2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
distaff is offline   Reply With Quote
Old 10-30-2013, 06:55 AM   #10
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 5,555
Distaff, that is excellent information. Can you tell us the year model please.

This does not apply to the 08 Endeavor. It holds the relay in at full battery voltage. No modulation circuit involved. The relay draws 1.5 amps and can get extremely hot to the touch.

As you suggest though the "buzzing" has caused some concern and has been addressed before. I suspect they moved away from the design because of the complaints and the existing system is less complicated.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 10-30-2013, 06:51 PM   #11
Junior Member
 
Join Date: Oct 2013
Location: Central Canada
Posts: 7
I switched purple and white wires about six hrs ago and can hear a very low guiet hum/whine. Nothing like before. Should these wires be put back where they were? White was on left side of solenoid. Reading Distaff note reminded me however last June when I had the coach in to check our new toad's wiring work, the house batteries were dead after sitting only a month. They were new batteries the previous Feb. The tech checked voltage on the solenoid switch and said it was not drawing like it should( I think he said only 3-4 volts) and recommended I change the solenoid. Mmm, ours is an 08 Endevour. Again thanks for all your valuable info! I have much to learn but am game for it as we love this life style so much. Meeting so many knew great people like on this forum !
__________________
RayCin is offline   Reply With Quote
Old 10-30-2013, 07:29 PM   #12
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 5,555
No need to switch the wires back but measure the voltage across the them please.

You should see full battery voltage.

If you measure lower then place the negative lead of your voltmeter on one of the batteries and the positive on the purple then the white and report those numbers.

The white wire should be zero volts. If it is anything above that follow it and fix that connection.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 11-02-2013, 07:30 PM   #13
Junior Member
 
Join Date: Oct 2013
Location: Central Canada
Posts: 7
Just got back to coach and tested as you suggested . White to purple shows 3.4. Purple to battery 3.4 - 3.6. Purple to battery about the same. White to battery 0 . Our coach was built in Oct/07. Maybe they were still wiring this area as the other poster had suggested? House Batteries are testing just over 6.
RayCin
__________________
RayCin is offline   Reply With Quote
Old 11-02-2013, 08:18 PM   #14
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 5,555
Quote:
Originally Posted by RayCin View Post
Just got back to coach and tested as you suggested . White to purple shows 3.4. Purple to battery 3.4 - 3.6. Purple to battery about the same. White to battery 0 . Our coach was built in Oct/07. Maybe they were still wiring this area as the other poster had suggested? House Batteries are testing just over 6.
RayCin
House Batteries at 6 volts????
Those should be 12.5 or more.

Time to start from scratch on this one.

Find a clean shiny ground spot and use that for ground. Measure the voltage on the negative post of the battery and then on the positive post. Then remove the cables one at a time and clean and tighten them securely.

Be sure to write down the measurement because it is too easy to forget after taking several.
__________________

__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:37 AM.


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