hi any york chiller engineers on here please all it is ihave a millenium recip chiller on r22 15kg a circuit and circuit 2 keeps goin off on high pressure when i have put my gauges on the discharge the pressure is 12bar standing and the suction is 13bar standing when i start that circuit up the discharge shoots upto 24bar and trips out basically rite away and the suction when running goes down to 4 bar but the circuit will only run for aprox 20 secs if that and trip out ireclaimed the refrigerant today due to finding a leak at the back of the compressor on the condensor and got 8kg of gas out any chance that low gas could cause this to trip it of on high pressure thanks alot adam