Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > National RV Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-09-2014, 09:47 PM   #1
Member
 
Workhorse Chassis Owner
Join Date: Jul 2011
Posts: 37
Radiator fans not working 05 dolphin

Today I noticed the coolant temp slightly high and on checking discovered the fans were not working. I tried the aircond and defrost postion no luck. I ran direct 12 volts to both fans and fans ran normal. Not sure how to trouble shoot checked all fuses and tempted to run it manually thru a 30 amp breaker switch when needed. Any thoughts?
Liteship
__________________

liteship 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 05-10-2014, 06:05 AM   #2
Senior Member
 
donhoward49's Avatar
 
National RV Owners Club
Workhorse Chassis Owner
Join Date: Aug 2010
Location: Portland, Oregon
Posts: 870
My suggestion would be to post this in the Workhorse chassis owners forum.. Someone will have a fix for U
__________________

__________________
2004 National Sea Breeze LX8375, Towing a 2012 Liberty.
donhoward49 is offline   Reply With Quote
Old 05-16-2014, 06:49 PM   #3
Junior Member
 
Join Date: Jun 2013
Location: Stockton, California
Posts: 21
Sounds like the temp. sending unit for the fans has gone defective or the connection to it has come off. You have two temp. sending units, the other for the temp. gauge in the dash. Both would be located near the front of the engine. Disconnect one of the two and check to see if the temp. gauge is still reading a temp. and if not, it would be the other sender. To check the sender, simply run a ground wire to the wire connection and if the fans come on, the relay is ok and replace the sending unit. If the fans do not come on, then check and replace the relay. If you want to add a manual fan switch so you can turn it on when you want, simply install a switch in the dash and run a wire to the sending unit wire for the fans and the other wire to ground.
Overdrive is offline   Reply With Quote
Old 05-16-2014, 08:23 PM   #4
Senior Member
 
stink's Avatar
 
Join Date: Apr 2012
Posts: 1,414
Underhood fuse and relay panel you should find relays for both fans. As they do not work with ac on its not a temp sensor problem. Check your relays for power.
__________________
Dave and Laura & two cats
02 Discovery with Accord toad
retired auto rv tech and teacher, wife rt nurse
stink is offline   Reply With Quote
Old 05-16-2014, 08:35 PM   #5
Senior Member
 
terry735001's Avatar
 
Join Date: Sep 2012
Posts: 1,158
Blog Entries: 11
i seen this on thinking it was a dolphin but i think i am wrong

but one thing to look at .. on the driver side they some times had the wring and the relay upside down taped to the wiring next to the fans them self
this would let water in but i really think i am wrong on this

but i am thinking the dolphin was the 454 and 8.1l setup
if it was it has the 5k and 1MB ECM that runs the fans them self off motor temp
and where the dash AC is set

if it is there well be 2 wires out of the ECM to 2 relays one for each fan

i think i have the info to look that up and tell you what wires if you need that latter so make sure the ECM is telling them to come on
terry735001 is offline   Reply With Quote
Reply

Tags
dolphin, fan, radiator



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
Brake lights not working help maxwell18 Class A Motorhome Discussions 10 05-06-2014 05:07 PM
2006 Winnebago slide not working sc6921 Winnebago Industries Owner's Forum 2 04-22-2014 10:12 AM
Heat tape not working!! Cari Z Full-Timers 17 02-12-2014 06:56 AM
2003 National Dolphin LX Living room slide quit working Tov Class A Motorhome Discussions 11 01-28-2014 12:13 PM
Dolphin decals. Walter5555 National RV Owner's Forum 1 12-05-2013 12:37 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:10 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.