Solutions

1. Check whether the light is on at low or medium. This can be set with the seal temperature button. See "How to operate vacuum packing machines?"
2. Check whether the tape and metal strip under the tape of the sealing bar are still in order. when the tape is burned, or the strip is broken, the strip and tape will have to be replaced. We recommend replacing the complete beam. See "What maintenance is required for vacuum packing machine?"