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 07-24-2007, 01:15 PM   #1
Junior Member
 
Join Date: Jul 2007
Location: Wisconsin
Posts: 4
We have a 1995 F53 chassis. Suddenly now just before a trip the high-speed quit working on the heater AC blower. There has been other discussion here about there being a resister pack in the fan circuit. There was a part number mentioned in that thread but I went to Ford and picked up the part and it bears no resemblance to anything on my motorhome. I had them put in my year chassis and of course they told me to go talk to the coach manufacture ( same runaround we always get out of Ford here) but the heater air conditioner is part of the chassis. Can anyone tell me where to look for the heater/AC blower resistor packs on a 1995 Ford super duty chassis. Or what a part number might be for that? or what could possibly be causing my high-speed fan setting not to work?

Thank you
Roger Danielsen
__________________

__________________
Big Newf Dog 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 07-24-2007, 01:15 PM   #2
Junior Member
 
Join Date: Jul 2007
Location: Wisconsin
Posts: 4
We have a 1995 F53 chassis. Suddenly now just before a trip the high-speed quit working on the heater AC blower. There has been other discussion here about there being a resister pack in the fan circuit. There was a part number mentioned in that thread but I went to Ford and picked up the part and it bears no resemblance to anything on my motorhome. I had them put in my year chassis and of course they told me to go talk to the coach manufacture ( same runaround we always get out of Ford here) but the heater air conditioner is part of the chassis. Can anyone tell me where to look for the heater/AC blower resistor packs on a 1995 Ford super duty chassis. Or what a part number might be for that? or what could possibly be causing my high-speed fan setting not to work?

Thank you
Roger Danielsen
__________________

__________________
Big Newf Dog is offline   Reply With Quote
Old 07-24-2007, 02:47 PM   #3
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,096
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">but the heater air conditioner is part of the chassis. </div></BLOCKQUOTE>

On a Class A, especially older ones, the air conditioning and HVAC controls are usually supplied by the coach manufacturer. There is no dashboard or windshield in the bare chassis, so none of the usual dashboard components are provided.

In more recent yearss Workhorse and Ford have begun providing parts of some atomotive systems that the coach builder then completes, but I think your 95 was likely bare of anything except the instrument cluster and steering wheel.
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 07-24-2007, 05:03 PM   #4
Junior Member
 
Join Date: Jul 2007
Location: Wisconsin
Posts: 4
Thank you for the reply. It is a holiday Rambler endeavor. I went and looked again and I can't find the resister circuitry anywhere. Is it in the switch?

Roger Danielsen
__________________
Big Newf Dog is offline   Reply With Quote
Old 07-25-2007, 01:28 AM   #5
Senior Member
 
Join Date: Nov 2005
Posts: 3,193
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Big Newf Dog:
Thank you for the reply. It is a holiday Rambler endeavor. I went and looked again and I can't find the resister circuitry anywhere. Is it in the switch?

Roger Danielsen </div></BLOCKQUOTE>

Roger,

Many of the resistor packs are coiled air cooled units and are mounted in the blower housing under the hood. All you would see is a connector with several wires going to an metal or micaboard access plate on the blower housing or air plenum.

In 95 Fridget (not sure of spelling) was one popular brand of in dash heating/cooling unit used in motorhomes.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 07-25-2007, 03:24 AM   #6
Senior Member
 
Join Date: May 2004
Location: MI
Posts: 197
My HR (1990 &P30) is just to the left of the heater and on the outside for cooling, metal box. It has a plug with several wires; you can follow them to the heater box. High is direct wire from the switch, the resistor pack is to reduce voltage for the lower speeds.
__________________
Argosy is offline   Reply With Quote
Old 07-25-2007, 03:47 AM   #7
Senior Member
 
Richard S.'s Avatar
 
National RV Owners Club
Ford Super Duty Owner
Join Date: May 2007
Location: El Cajon CA
Posts: 1,634
I think you will find the part you are looking for is not a FORD part. Try Evens Tempcon, link below, then click on service parts. Hope this helps.

http://www.evanstempcon.com/products.php
__________________
2007 Sea Breeze LX 8321 Ford Chassies
2004 Ford Ranger Edge
El Cajon CA.
Richard S. is online now   Reply With Quote
Old 07-25-2007, 02:33 PM   #8
Senior Member
 
jeepfreak's Avatar
 
Join Date: Mar 2003
Location: Home is where we park it
Posts: 417
i found the resistor to be on the heater/ac box under the hood to the left near the ac expantion valve
__________________
2007 Allegro 34wa .WH w20 8.1 6speed. Bow tie powered 79 CJ7 or a 2014 Jeep Unlimited Rubicon Toad.
jeepfreak is offline   Reply With Quote
Old 07-25-2007, 09:32 PM   #9
Junior Member
 
Join Date: May 2006
Posts: 10
Usually on high the motor gets 12 volts.But because of the higher curreny draw it may use a relay to switch the 12 volt power source.Sometimes the relay will burn the contacts and open the circuit to the motor.Look for a relay that may plug into a socket or may be hard wired to the wiring.Also check for any loose connection near the relay .Good Luck Mike
__________________
school man is offline   Reply With Quote
Old 07-27-2007, 07:21 AM   #10
Junior Member
 
Join Date: Jul 2007
Location: Wisconsin
Posts: 4
Problem solved. Thank you to all who took the time to reply! I wish there would have been heater/ac circuitry schematics available in my chassis book but there wasn't. There was in fact a Ford style relay attached to the left side under the hood when standing in front of the vehicle. I tried switching the relay, didn't work. Checking the voltage levels of the lines into and out of the relay the relay was working but there was no line voltage to switch. I then began looking for the fuse for that circuit. Lo and behold on the right-hand side of the firewall facing from the front of the vehicle there was a 30 amp fuse holder attached to the firewall that had corroded somewhat. It was all alone tucked in between some wiring harnesses. (Note to self always make sure you check all the fuses and know where they all are first) Replace the oxidized 30 amp fuse with new one and applied some dialectic grease and I now have a high fan setting. I still have no idea where the resisters for the low settings are or even the fuse for the low fan for that matter. But I do have my high fan setting working.

Roger Danielsen
Waukesha WI.
__________________
Big Newf Dog is offline   Reply With Quote
Old 07-31-2007, 08:48 PM   #11
Senior Member
 
Join Date: Apr 2005
Posts: 314
The resistor pack for my dash AC and fan is on the box that houses the AC evaporator, right in front of the passenger seat in our motorhome and accessible under the hood. My history is having to replace the blower relay once (it is mounted under the front hood in front of the driver's position) and next having the resistor pack go bad because my fan was dragging at lower speeds and overheating. I found a thermal fuse on the resistor pack and replaced it for under $2.00 at Radioshack, instead of spending over $35.00 for a new resistor pack. Pulled the fan and gave it a good cleaning and lube, so far, so good! Best wishes, HarveyP
__________________

__________________
94 Holiday Rambler Endeavor LE

Cummins/Allison
HarveyP 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
Squeaking Blower motor Full-Timers Workhorse and Chevrolet Chassis Motorhome Forum 3 06-20-2008 05:54 PM
R&R blower motor tun75 Winnebago Industries Owner's Forum 7 09-13-2007 02:38 PM
Only high speed working on my dash blower Ken & Joyce Winnebago Industries Owner's Forum 9 01-14-2007 04:37 PM
AC Blower Fan (Cab) Speed Varies Gaspo Winnebago Industries Owner's Forum 2 08-15-2005 08:23 AM
Only high speed working on my dash blower New Member Check-In 9 12-31-1969 07:00 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:26 PM.


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