[Histonet] Tissue processor (LEICA TP 1050) paraffin blockage, help needed

[Ze Lu]

Hi, histonet friends,

We had a TP 1050  tissue processor runs well before. However there is a consistent problem recently. When running retort cleanning after fininsh of tissue processing, there is always error message of "paraffin blockage". We did notice that paraffin blocked the white plastic tube (transfer the solvent from the solvent station into the retort) right below the retort. We need to use blow dryer to get the cleanning cycle go through every time. It seemd that paraffin leaks into that tube and cold down there duing the last three steps (in paraffin step) in tissue process. I am wondering whether somebody else has the same problem. We do use "P/V" combined  setting in the three paraffin steps. If using AMB, P or Vac alone, will that make the leakage less? Thank you very much.

Ze