How do you replace an air conditioner expansion line?
How do you replace an air conditioner expansion line? Smear some refrigerant oil on the o rings and insert the new orifice tube into the line. Observe the direction, it’s easy to put it in backwards. The new orifice tube should have an arrow on it that should go in pointing toward the evaporator. Put new O rings on the line and re-connect the line. Why does my air conditioner have an expansion valve? If your air conditioning (AC) has been less than helpful this summer, it may be the expansion valve (also known as an orifice tube). AC expansion...