Extruder cooling
Vol.20 #1, Mar., 1993
Have you checked your cooling lines on your extruder lately?
Corrosion can completely shut off your water supply, or can lead to plugged lines. Solenoid valves can also scale over and fail in either open or closed positions. Periodically check the flow.
See also
Cooling water
Cooling water flow
Extruder throat cooling
Extruders
Water cooling
Water piping
Zone cooling check up