Technical Tips > Pre 84

79 Model with A/C - Blower Fan issue

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stuclark:
thanks, found exactly what you said Sirfixalot for the plunger switch, yes, it had broken away, so now I need to track one of these down. I spent some time also working on the blower fan. Again you were right in that I had 12v to both terminals of the Blower Fan. My Fan Relay seems inoperative, but there is some weird wiring that someone has done in and around this area. I'm pretty much at the end of my capability now, so thinking I might need an auto sparky? Know any in the Western Sydney area that might do house calls?

stuclark:
So after some investigation this is where I am up to and now stuck. Hoping I find someone with a stock '79 with A/C that I can either get some pictures off or go to look at the wiring to compare. but the attached might help show my situation

Vettech:
Stu - the switch looks like a generic and should be available from any Auto store  that sells alarms - may be Jaycars.
I'm  in the W/subs but I'm  as sick as a dog at present and my 78 is currently doing an impression of a storage cabinet and getting into the motor would be tricky - I'll  have a look at my build book and maybe find my manual. If I find some info I'll  let you know. Oh and I have gear to test any electrical bits etc.

sirfixalot:
Check down on the starter to see if the black wire has been installed onto the 3/8 stud on solenoid is a common fault on fan motor which puts + on both sides of fan motor if it is on the stud remove it & put it onto the bell housing bolt . Disconnect purple wire off fan motor & operate fan switch connect a test lite to earth & you should be able to see the speeds.I have the male / female 6 hole plug brand new give me a call. may even have 2nd hand switch, Jaycar have a similar switch you will have to connect second wire under the mounting nut as it is above earth potential mounted on fiberglass

Vettech:
Not sure if I'm helping as my cct's etc relate to 78, but it's relay has five connections - a two pin plug on two and a three pin plug with one pin offset on the other three. A seperate plug comes out of the loom and goes to the fitting that carries the speed resistors mounted thru the AC housing. Even though mine has been converted it was done back in 79/80 and the Blower housing/Evap assembly is still on the RH side.  There is another two plugs out of that loom but the pages don't  show everything.

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