115 Changeover Switch - Where to find? How to tell if it's bad?

[115_veggie]

Hello,

My A/C was working fine and then stopped. My heater blower works when the climate control switch is not on "cool". I've bypassed the A/C pressure sensor switch (temporarily). The compressor runs and cools when jumped with 12V to the clutch. I suspect the changeover switch. Does anyone know where I can find one? Or, does anyone know how I might verify that this part is bad before changing it? The reason that i suspect it is that the previous owner removed the compressor relay (i guess to avoid changing it?) and I expect that the changover switch was not designed to handle that kind of current for that long.

Also, I'm new to this forum, so if there's another place where I should post this, please let me know and I will post it there.

Thanks,

Ken (newbie)