A/C bypass

[chipahoy]

Anyone know where I can find those tiny pin connectors to bypass the low pressure cut off switch to engage the compressor to add freon?

[elwesso]

Just use a paper clip or a little piece of wire, it's not going to shock you (just don't let said paper clip ground against the frame of the car).

BTW, you should be able to charge the system enough with the compressor off so you don't have to bypass the low pressure switch. If you can get the refrigerant can to 100°F you should be able to get the system pressure up to about 125 PSI, which should be plenty to not allow the low pressure safety to trip. If you have a good vacuum on the system I'd say you should be able to get at least half the charge in the system.. Get the cans of refrigerant nice and warm (dunk them in as hot of water as you can get) and that will help force more refrigerant into the system.

[float_6969]

Yea, like Wess said, there's no reason to bypass that switch. You could damage the compressor if you do.

[the converted]

Never had to bypass one working on a car. The low is on the suction side and kicks off at something like 20 psi. You should be more than able to get it to at least cycle while you're adding from a can.