Spectrum SB 30 full of ***** but running in a vacuum

[shix]

I am working on a spectrum that has the rear unit disconnected. The unit has a newly rebuilt throttling valve on it and I just charged it. The unit is full of ***** but it is running in a vacuum. The high side pressure is stable around 135psi and the low side is in a vacuum. It is cooling but only at a -7* differential.

[Brian_UK]

Is the rebuilt valve working?

[cadwaladr]

Drier,txv?

[gravy258]

check the LLS diode is energised on the relay board(liquid line solenoid) Bottom left corner of board.
If it is, probably TX valve or power head fault

[pcvh1976]

your problem most be found in the liquid line, check also if your LP-gauge is correct.

[mbc]

all suggestion might be right,

what is a your refrigeration gas ? why your hp pressure is a 135 psi

if your using R-22 it should not be less than 180 psi , Min. TX valve works pressure to works and open correctly

[gravy258]

all suggestion might be right,

what is a your refrigeration gas ? why your hp pressure is a 135 psi

if your using R-22 it should not be less than 180 psi , Min. TX valve works pressure to works and open correctly

it'd be R404a , the OP should of posted in the TRANSPORT section.