Starting up new North Star and bohn CU, R404 and sporlan level master. Anyone know about level master? The heater (15w) has continuity and power but draws no current. Seems to overfeed because system is not yet fully charged yet suction line ices up through accum. and up to the suction service valve. Ice making is good but running at 150 PSI head and 12 PSI suction at 62 deg ambient. Still flashing in sight glass so is undercharged but unsure if TXV is at fault or?? There is no way to adjust superheat with the TXV so I'm lost.