Albert Noel
Well-known member
Does anyone here have extensive knowledge of the Technotrans Alpha-C found on the 2006 Heidelberg SM74 (4+L)?
Specifically, I am trying to figure out why the pump that powers the roller chillers continually faults and stops pumping. I get the error "F070 - T-Circ. Water Lack" and the pump ceases to operate causing a loss of flow and roller temps that are typically all over the map (especially when running at 15,000iph). The starting pressure is properly between 1-1.5bar indicating to me that there is plenty of fluid in the system.
Is there a sweet spot to bleed any air from the coolant lines? Perhaps I have an air pocket somewhere that is keeping the pump from functioning? It shuts off and loses pressure almost immediately after clearing the error and restarting the pump. The unit itself is the Technotrans Alpha.C 120SC-4.
Speaking to a tech from Heidelberg Canada: he thought it may be a bad regulator but no real way to tell without extensive tear-down/labour.
Can anyone offer any insight? Maybe you've had a similar issue?
Specifically, I am trying to figure out why the pump that powers the roller chillers continually faults and stops pumping. I get the error "F070 - T-Circ. Water Lack" and the pump ceases to operate causing a loss of flow and roller temps that are typically all over the map (especially when running at 15,000iph). The starting pressure is properly between 1-1.5bar indicating to me that there is plenty of fluid in the system.
Is there a sweet spot to bleed any air from the coolant lines? Perhaps I have an air pocket somewhere that is keeping the pump from functioning? It shuts off and loses pressure almost immediately after clearing the error and restarting the pump. The unit itself is the Technotrans Alpha.C 120SC-4.
Speaking to a tech from Heidelberg Canada: he thought it may be a bad regulator but no real way to tell without extensive tear-down/labour.
Can anyone offer any insight? Maybe you've had a similar issue?
