If the display is normal, then maybe is the second situation of “b”, the thread wire were disconnect. If still showing 3 line, then is the first situation of “a”, the socket wire were fall out or break....
Combo 8 IN 1 15"X15" Heat Press Machine with 30OZ Tumbler Heat Press. The swing-arm style is ideal for sublimation applications because its design ensures even application of temperature for optimal ink saturation on the intended substrate....
👕 Premium Quality Heating Plate -- Heat Press Machine 15x15 equiped with advanced die-cast aluminum heating plate with non-stick Teflon-coated surface, It effectively prevents scorching during the heat transfer process....