Hello All - I need some diagnostic guidelines regarding my AC.
(The system was running the original R12 refrigerant.)
It worked all last year and then quit this summer. The switch
engages "something" (I hear a click) but the rotor does not spin,
and the high pitch whine from the compressor is not audible.
Is this related to low R12 pressure ? clutch wear ? etc... ?
I do not have a manifold pressure gage - so I don't know the
status in the system

So - I have seen R12 sold on ebay - is this genuine and legit ???

If I transform the system to 1394, I would have to take it in to
a shop to remove the R12 completely - fine - are there any
special tools required: I have seen kits available to do the
transformation - are there any recommendations ?

THANKS MUCH !

 

I did a check this morning :

With the engine cold but running, and AC switch in OFF position
the condenser fan and the armature are stationary.

With the AC switch ON both the condenser fan and the armature
plate rotate.

Does this indicate that the 25+year R12 is low or depleted and
everything else is fine ???

Any suggestions ???

 

I tested the AC with the engine hot - same results - Fan and Armature are engaged.