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Heater Blower Motor
The blower motor for the heater will only come on when in the middle position. If it is in the first or third position nothing happens.
Is this a relay? Thanks Sabyre |
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12-10-2003, 05:32 PM
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Join Date: Dec 2001
Location: ventura,ca
Posts: 290
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your loseing the low speed winding in the motor...or the switch is dirty...try jumping out the switch...
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1988 924s mars red coastal cruzer |
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12-10-2003, 06:18 PM
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Need to know the year of your car.
Hint: Add it to your signiture line. Could be the switch. Could be the balast resistor that sets the speeds. Could be the safetys on the balast resistor. What year?????
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-10-2003, 06:46 PM
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Join Date: Feb 2000
Location: Kingsport, TN
Posts: 2,935
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The thermostats (safeties) in the switch could be dirty. Happened to mine.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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12-11-2003, 03:52 AM
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The car is a 1984 944.
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"We are the music makers and we are the dreamers of the dreams" -Willy Wonka |
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12-11-2003, 09:04 AM
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Quote:
The best fix is to replace the motor and the switch. If the balast resistor has burned out (no safety fuses on it) that too. In some cases you can clean up the armature in the motor (take it to a good electrical motor shop) and replace the switch in the dash.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-11-2003, 09:19 AM
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Join Date: Mar 2004
Location: Savage, MN
Posts: 3
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Can anyone advise me on how to replace the blower motor? Mine will not turn and it has voltage at the motor. If I leave it on too long, it starts to smoke. Thak can't be any good! Can it come out from the engine bay or do I have to tear apart the dash?
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1980 924 |
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03-30-2004, 07:08 PM
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Join Date: Feb 2000
Location: Kingsport, TN
Posts: 2,935
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My previous post should have said the following. I was a little sloppy with the wording.
The thermostats (safeties) in the resistor bank (on blower box under hood) could be dirty. Happened to mine. The problem was cause by an oil leak. The vapor was sucked up into the blower and fouled up the thermostats on the resistors. Only high speed position would operate blower.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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03-31-2004, 05:56 AM
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Feelin' Solexy
Join Date: Oct 2003
Location: WA
Posts: 3,801
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Sounds like I may have a similar problem...Starting about 2 days ago I discovered that my fan is no longer working at the 1 position. 2,3 and 4 all work correctly...it's annoying, because to get any air flowing in the car I have to have it at 2, which is pretty strong/loud. Heaven help you if you turn it up to 4 in my car...a veritable hurricane!
Should I be checking the same things or is my switch (1989 NA) different from Sabyre's because of our different dashes etc? Any advice appreciated!
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Grant In the stable: 1938 Buick Special model 41, 1963 Solex 2200, 1973 Vespa Primavera 125, 1974 Vespa Rally 200, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar, 2011 Pursuit 315 OS, 2022 Tesla Y Gone but not forgotten: 1973 VW Beetle, 1989 Porsche 944, 2008 R56 Mini Cooper S |
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04-05-2004, 01:07 PM
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Join Date: Oct 2006
Location: Rochester, NY
Posts: 185
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Old thread.
86 944 Problem. blower does not come on at any speed. 1. I've soaked the ballast resistor and tried to clean it. Is there a way to test the resistor before I replace? 2. Changed the relay in the fuse box with another. No change. 3. How do I "jump" the motor to rule out a bad motor? Thanks. |
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06-25-2019, 06:51 AM
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1983 Porsche 944 2.5 liter
