Error message: “Over temperature upper current conductor”


During production, the error message “over temperature upper current conductor” appears. This means that the cooling is no longer sufficient to keep the upper current conductor constantly below 40 degrees Celsius.

Possible Causes & Resolutions:

If the cooling unit is working properly (temperature and pressure is OK) and no flow switches are giving an error, then contamination is most likely the cause of the problem.

Clean the cooling circuit, especially the cold-water circuit in this case, including the cooling unit. Check the water level in the cooling unit and top up if necessary and replace lubricant (if PowerROLL – coolant or DISCON is used) and clean the cooling system as recommended every 6 months.

Cooling emulsion exchange and cleaning