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08-16-2007, 07:37 AM
| #1 |
| Junior Member Join Date: Aug 2007
Posts: 5
 | Question from New Kid on the Block I have a 1997 Motorhome on a Ford chassis and have lost High Speed on the heater/AC blower motor. All the other speeds work fine. Any ideas on this issue?  |
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08-16-2007, 07:55 AM
| #2 |
| Senior Moderator  Join Date: Apr 2005 Location: Cali-4 Nye-Aye?
Posts: 1,801
 | What happens when you switch to high speed, no change or shuts off?
__________________ Rock, Paper, Scissors, Lizard, Spock |
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08-16-2007, 08:46 AM
| #3 |
| Junior Member Join Date: Aug 2007
Posts: 5
|  New Kid When switched to high the blower stops. If switched to a lower speed it runs normal. |
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08-16-2007, 11:19 AM
| #4 |
| Senior Moderator  Join Date: Apr 2005 Location: Texas
Posts: 3,789
| its probably the blower resistor. most common cause anyways. not sure where it is located on your rig though.
__________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4 |
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08-16-2007, 05:31 PM
| #5 |
| Senior Member Join Date: Jul 2007
Posts: 4,084
| I'd check for a loose wire since the high speed essentially bypasses the resistor, either at the resistor or at switch. I'll try and find you a diagram. |
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08-16-2007, 07:07 PM
| #6 |
| Senior Member  Join Date: Jan 2006 Location: South Florida (Palm Beach), originally from south of BOSTON
Posts: 644
| yeah check for a wire that came off the back of the rheostat(the resistor). if that isnt visible, test for voltage to see if you have an internal failure of the rheostat
__________________ im a straight shooter with upper management written all over me |
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08-17-2007, 05:36 AM
| #7 |
| Senior Member  Join Date: Dec 2006 Location: jax,fl
Posts: 1,195
| you will have to get a new switch.
__________________ A dirty mind is a terrible thing to waste!  |
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08-17-2007, 07:33 AM
| #8 |
| Junior Member Join Date: Aug 2007
Posts: 5
| riverman Thank you all for the help,loose wire at the switch,had to purchase new switch. GREAT HELP!!!  |
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