Blower motor fan relay blown again! HELP | Ford Explorer - Ford Ranger Forums - Serious Explorations

  • Register Today It's free! This box and some ads will disappear once registered!

Blower motor fan relay blown again! HELP

cernuda1

New Member
Joined
October 13, 2010
Messages
3
Reaction score
0
City, State
Palatine, Illinois
Year, Model & Trim Level
94 Explorer XLT
Blower motor relay keeps blowing? Fan works fine in all speeds before it blows. I have replaced three in 24 hours. Need your help to single the cause. Its dam cold in Chicago and need the blower to work ASAP.
 
<

Join the Elite Explorers $20 Gets rid of the ads!

Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private conversations, and more. Join Today. Your support is greatly appreciated.




Robert Nick

Active Member
Joined
April 2, 2001
Messages
97
Reaction score
0
City, State
Brownstown, MI
Year, Model & Trim Level
'92 4WD XLT / 2000 Mounty
Is the issue with the Relay a Relay Coil Issue or a Relay Contact Issue? If the Contact side of the Relay is failing, it is probably due to the Contact Load, (i.e., Intermittent Blower Motor Armature Short). You can insert a Test Lamp in place of the Blower Motor after replacing the Relay to verify.
 
<



1AJeremyD

Explorer Addict
Joined
September 28, 2010
Messages
1,142
Reaction score
1
City, State
Mass
Year, Model & Trim Level
95 XLT 4.0
Sounds like it is grounding out and frying the resistor. If the wire is frayed somewhere it could be touching the body hence why you have gone through 3 in 24 hours. Grab a multimeter and do a continuity test to make sure all the wires are properly connected and then do a resistance test on them all
 
<



92exp4x4

Elite Explorer
Joined
February 5, 2003
Messages
1,724
Reaction score
339
City, State
Covington, Kentucky
Year, Model & Trim Level
92 XL 2-door and others
Make sure the blower motor spins freely and is not sticking. Visually inspect all the wires in the circut. A short, either a cut wire touching the body or the motor stuck will burn the relays up, but you should be blowing a fuse first. You may have to change the blower motor to fix this but make sure everything is in good shape first.
 
<



DeRocha

NEX Vice President
Elite Explorer
Moderator Emeritus
Joined
July 5, 2003
Messages
6,671
Reaction score
41
City, State
Brockton, MA
Year, Model & Trim Level
'93 XLT 4x4
Also Check out the Blower motor fire thread to ensure the blower doesn't have debris stuck inside.

leaves2.jpg
 
<



Roadrunner777

Explorer Addict
Joined
February 5, 2011
Messages
2,022
Reaction score
284
City, State
Bemidji, MN
Year, Model & Trim Level
94 4x4 Sport 88k
Disassembling the blown relay should give you a hit towards contact or relay coil.

I need some advice on a similar issue. When I bought this Explorer a month ago, the blower worked as expected. About 2 weeks ago, the blower would start working after about 2-3 minutes. Last week, a little longer. Today, it quit. I checked wires and connections and gave up, drove home and started reading up on it. Went out to start diagnostics, and the blower works fine.

It is not heat related. It delays whether the engine is warm or below zero. I'm going to replace the relay as preventative and the fact that it is the easiest cheapest thing to try. My logic is funny that way. Does any of this sound familiar to anyone?

Added: In case it helps anyone in the future, yes, replacing the relay fixed my issue of intermittent blower motor.
 
<



Top