Checked filter/blower compartment for possible restrictions. Started a/c unit and allowed to run for 15 min. Outside ambient air temp 63*F, suction/discharge psi 118.5/245.9, SLT/LLT 49.8/76.4, VSAT/LSAT 40.0/82.4, SH/SC 9.8/6.0, supply/return air temps 48/70*F(22*F diff). Replaced leaky shraeder valve on LL. Air handler controls & wiring are ok, no faults or irregular component values.