Can't get rear heater fan to come on, Even in AZ we need heat sometimes. Options

[Brad Roberts]

Nope. I'm pretty tall. The crease of my knee if WAY above it when I'm sitting in the seat.


B

[banderson]

I don't need no stinking heater blower, and I live in new hampshire. Above 2000 rpm, my engine fan will blow enough air to melt the rubber off my shoes.

Throw that thing away, cap off the "S" tubes and worry about something else, YMMV

[3d914]

banderson,

But I bet you drive all winter with your top on.

Not me. Only if its raining - and even then it needs to be raining, not sprinkling. I love it - with or without heat.

No else in my family will ride with me without the heat. That works out OK most times, but other times I like to take my wife or one of the kids along.

I may even post pics of a handle disassembled for future ref. Some people may call this anal (IMG:style_emoticons/default/bootyshake.gif)

I've found its easy to discard things we don't understand. So instead I try to understand them. (IMG:style_emoticons/default/cool.gif)

Its just my way.

[banderson]

Gerard, You are quite mistaken. Last monday, and again Wednesday, were nice. It had rained over the weekend and the salt had washed away. THe temperature was in the 30s and the top was off. I have a 30 mile commute each way. I wore an extra layer and a hat but there was no traffic due to the vacation week and I was moving right along (IMG:style_emoticons/default/mueba.gif)

I find that with the top off, warm air gets sucked right through and I am sitting is a pocket of warm air with a cool breeze circulating around my head. Totally comfortable, Totally awesome.

As for your blower motor, keep it, and use it if you like.

[3d914]

banderson,

Wouldn't be the first time . . .

Keep the top off and the wheels down! (IMG:style_emoticons/default/MDB2.gif)

[914ghost]

Same thing happened to me, my blower didnt work when I bought the car.
Found out the blower was bad, I got a working blower.
Still didnt work, wire from lever to heater blower WAS attached, no ground though, also no power to blower- wiring in engine comp't was all present.
I could have wrestled with that little pig for a month, but:
Run FUSED wire from POS/HOT/+/15 on coil to blower, run new wire from heater switch by your right kneecap to other terminal on blower.... . ..
Then have a beer and burn some rubber. It friggen works.
R O

[Spoke]

I had the same problem with my heater control. Actually had 2 controls, short one w/o center console and long one for center console. Both had the same problem that the mechanism to ground the contact gets oxidized and the lever doesn't make secure contact with ground. I solved this by getting a piece of brass wire (helps to have HO trains as a hobby) and fashioned the wire such that it contacted the side of the lever through its entire travel and attached under one of the mounting bolts.

Spoke

[rhodyguy]

i wonder if the aux fan worked? (IMG:style_emoticons/default/flag.gif)

kevin

[Spoke]

I also had 2 other problems, one, the RF interference coil on the motor fell off from vibration-had to be soldered back on-used silver solder-much stronger than ordinary solder.
Two, a wire inside my relay had broken-resoldered a very flexible wire back on and everything worked. Need the heater in winter in PA.

Spoke

[Root_Werks]

The heater lever grounding through the cables is correct and yes, a very poor design by Porsche. Most levers pull back far enough now that they have rubbed off paint and the handle grounds to the center tube allowing most levers on 914's to still function, even though not as intended.

Good job dececting the fault! It took me a long, long time years ago to figure out the original intent of that little system. (IMG:style_emoticons/default/laugh.gif)

[Rhodes71/914]

How timely that someone added to this post, saved me a search. One of my weekend projects is to try and frigure out my heater motor (rear and front fresh air blower).

Hey Dan (root werks) must of had to work today?