no high pressure rv2 help!

FIRST you need to block the condenser, and the shop manual mentions that. You need to get AT LEAST 125LB (the manual says more) head pressure. If the head does not come up much, and if the suction doesn't come up, it's either low on refrigerant or the TXV or if it uses the evap pressure reg is bad/ plugged.



WATER (freezing) in the system with do that. What did you do to evacuate the system? HEAT helps. That is, if you evacuate the system in very cold weather, even if you pulled a good vacuum, the water may not be out of the system.

Receiver dryer? New one?

Is the blower running up to speed? You sure it's getting air across the evap, that is, are the blower doors opening/ closing properly?