Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 08-09-2014, 03:57 PM   #1
Member
 
Join Date: May 2014
Location: Aloha
Posts: 31
Cooling fan on the power center always on.

We returned home from a 9 day trip yesterday afternoon without any issue. That evening I noticed the cooling fan for the power center was on. It seemed unusual for it to still be on, charging the batteries presumably, after hours on shore power but I decided to wait it out until today.

The fan is still on so I did some preliminary troubleshooting. The fan turns off when I flip off the power converter breaker, no surprise. No fuse lights are on. I disconnected the charging cables and measured the battery voltages, 12.8 on both.

Everything appears to be functioning properly but the constant fan noise is too much to live with. Anyone have any ideas?

The power center is a WFCO Ultra III.

Thanks.
__________________

__________________
2015 White Hawk 23 MBH
2014 F150 Lariat Ecoboost w/ 3.73
TT rookie
Snaporaz is offline   Reply With Quote
Old 08-09-2014, 04:35 PM   #2
Senior Member
 
mcfarmall's Avatar
 
Join Date: Jun 2011
Location: Kalamazoo, West Michigan
Posts: 1,814
That's funny as I can turn on every light, fan and 12V accessory in my camper and I can't get my cooling fan to come on. Maybe it's because with everything running I'm only pulling 25 amps on a 45 amp converter.
__________________

__________________
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.
mcfarmall is offline   Reply With Quote
Old 08-09-2014, 06:37 PM   #3
Member
 
Join Date: May 2014
Location: Aloha
Posts: 31
Ok, I think I found the issue. My emergency trailer brake pin had come out. I had no idea how this worked but it certainly draws a lot of current. The box felt warm to the touch. When I installed the pin the fan immediately went to a slower speed. It's still on 10 minutes later but I expect it is charging the batteries now and will eventually stop. I hope I didn't cause any damage anywhere.
__________________
2015 White Hawk 23 MBH
2014 F150 Lariat Ecoboost w/ 3.73
TT rookie
Snaporaz is offline   Reply With Quote
Old 08-09-2014, 06:59 PM   #4
Senior Member
 
mcfarmall's Avatar
 
Join Date: Jun 2011
Location: Kalamazoo, West Michigan
Posts: 1,814
You can overheat the electromagnets on the brakes if the breakaway plug gets pulled. The magnets normally receive only a percentage of battery voltage proportional to the gain setting on your trailer brake controller. When the breakaway plug is pulled, it sends full battery voltage to the electromagnets. Were the brake drums hot?
__________________
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.
mcfarmall is offline   Reply With Quote
Old 08-09-2014, 07:02 PM   #5
Member
 
Join Date: May 2014
Location: Aloha
Posts: 31
I didn't even think about checking the drums. They are, of course, cool now.
__________________
2015 White Hawk 23 MBH
2014 F150 Lariat Ecoboost w/ 3.73
TT rookie
Snaporaz is offline   Reply With Quote
Old 08-09-2014, 07:10 PM   #6
Senior Member
 
mcfarmall's Avatar
 
Join Date: Jun 2011
Location: Kalamazoo, West Michigan
Posts: 1,814
If the trailer brakes work OK the next time you take it out I wouldn't worry about it.
__________________
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.
mcfarmall is offline   Reply With Quote
Old 08-09-2014, 07:12 PM   #7
Member
 
Join Date: May 2014
Location: Aloha
Posts: 31
Yeah. It's gonna be the first thing I check as I pull out next week.
__________________
2015 White Hawk 23 MBH
2014 F150 Lariat Ecoboost w/ 3.73
TT rookie
Snaporaz is offline   Reply With Quote
Old 08-16-2014, 08:56 PM   #8
Member
 
Join Date: May 2014
Location: Aloha
Posts: 31
I just got back from a trip to the coast and back and the brakes worked as well as they always have.
__________________

__________________
2015 White Hawk 23 MBH
2014 F150 Lariat Ecoboost w/ 3.73
TT rookie
Snaporaz is offline   Reply With Quote
Reply

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 State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:17 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.