Tom qab kaw lub chiller dej ntws valve, tab sis dejtseem khiav thaum ib tag hmo... Dej los tseem tshwm sim tom qab lub chiller ntws valve kaw lawm.Qhov no tej zaum yuav yog qhov tseem ceeb ntawm lub valvemini valve yog xoob.Npaj ib qho tseem ceeb allen, aiming ntawm lub valve core thiab nruj nws clockwise, ces xyuas cov dej ntws qhov chaw nres nkoj. Tsis muaj dej ntws txhais tau hais tias qhov teeb meem raug daws. Yog tias tsis yog, thov hu rau peb pab pawg tom qab muag tam sim.