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Home AC Compressor High-Side Pressure Cycling
My 7 yr old 2.5 ton Goodman AC unit is now working OK (the thermostat failed!), but the svc tech noted that the high-side pressure slowly cycles from 380--580 psi (~every 10 seconds), and the amp draw there is in synch with that at 8.5--12 amps. Any idea what to look for???? It DOES work, but that pressure over the nominal 450psi is troubling. --gdb