924Board.org

[johnwalklett]

Could anyone tell me where the resistors for the fresh air fan speed controle are on a right hand drive 1982 924. Before I dive in stripping things down.

thanks

John

[Mike924]

Earlier cars had them hidden under the front panel (the one with the P badge), but I think yours will be inside the heater intake (under the windscreen, behind the bulkead) along with the fan.

Is there a problem with the blower?
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[Smoothie]

"under the front panel" - Are you sure about that?
I'm guessing you have the interior blower and radiator fan resistor locations confused. Early rad fan resistors were up front somewhere like that. Later rad fan resistors were placed in the dash..

Early fresh air blower resistors (one 10ohm resistor) have to be in the dash somewhere - the manual shows them grounding at (1) which is near the fuse-relay panel. That 10ohm resistor provides a resisted path to ground that bypasses the blower speed switch, providing low-speed operation of the blower when the ignition is switched on. There's also some resistance built-into the blower speed switch itself (slider control) for mid-speed and a non-resisted position for high-speed. (Talking the early hvac system here with 3 full-width slider controls.) The switchover from early to later hvac system occured during model year '82 production, so you could have either one depending on the manufacture date and VIN.
If you have the later design, you'll have a rotary blower speed switch, 2 half-width sliders and one full-width slider. -In which case you should find the resistor/s in the middle area of the dash, somewhere between the rotary switch and blower motor. Sorry - I don't know where they are exactly, but should be easy to find by following the wires from the rotary switch.
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"..it's made in Germany. You know the Germans always make good stuff."


'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

[johnwalklett]

I have the later design, with a rotary blower speed switch, 2 half-width sliders and one full-width slider.

Speeds 1 has not been working since I had the car 3 years ago, but now speed 2 is not working either and I am left only with speed 3.

I have the wiring diagram in my workshop manual, but was unsure where to start looking for the resistors. I'll have to have a look for them this week end..... wish me luck.

John

[Ozzie]

Resistors are almost bullet proof.
I'd suspect the switch first.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

[Rasta Monsta]

Yep. . .buy a can of "Electrical Parts Cleaner" and blast away. . .bet that takes care of it.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[!tom]

[Mike924]