AC system logic or schematic question (pressure switch and rad fan)

[rayfloyd170]

Finally found the culprit. Case solved

My AC Pressure switch is acting weird. P/N 88645-60030

This P. switch controls the Magnetic Clutch for AC compressor and the Condenser/Rad Fan hence it has 4 terminals.

On a normal day it works flawlessly but when the AC compressor discharge pressure goes past 360-370psi it cuts off continuity to terminals 2-3 for the condenser/rad fan control thereby shutting down the condenser/rad cooling fan even when engine coolant temp is way high past 96C. It should cut supply only for the magnetic clutch as mentioned in the troubleshooting reference. Past 220psi it must have continuity for terminals 2-3 but mine cuts off intermittently about +360psi and goes normal below ~290psi.

Will be replacing them as soon as I get the denso replacement. i also need to evacuate the system and probably i will also replace the filter drier during that time.