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Guys, I think I'm going to throw parts at this AC system, flush it and see it I can get it running again. I think at a minimum I'll replace the TXV expansion valve, the drier and the binary switch. Does anyone have part numbers for those items? Will any universal drier do? My drier has no...

I reviewed the diagram. I guess you're right it only says "high" pressure switch. I don't see low pressure mentioned. Do they think you should assume that's a binary switch with both high and low pressure protection? It's hard to know if this engineer had thier coffee that day. Ha ha.

I still haven't figures out why my switch has tripped. If I jumper it the compressor runs. It has plenty of pressure. Now I'm wondering if higher pressure is built up in the dryer but not at my gauges (can that happen) or if the switch has failed. Do these switches need a reset in some way? So...

From that Trinary vs Binary video, I gather both types measure high and low pressure. One just has a input from the relay to also control the fan via temp or override switch. In my truck the fan stays on all the time. It's loud mounted on the cab like that. I'm tempted to move it. Sometimes I...

Good to know information for us non master mechanics. I wish the guy before me had use the switch with the shrader valve inline. I guess I'll be adding that fitting later.

I'm having to dig into a system installed by a previous owner. Is it safe to assume these relays live inside the evaporator box? I have the gen two unit. It appears the last guys did a poor job on the install. Naked wires rubbing metal edges in the firewall. I have put gauges on it and it...