How to Troubleshoot "Actual" Hot Runner Controller Temperature
Mold Making Technology
OCTOBER 6, 2020
The tip of a thermocouple must be properly seated. Photo Credit: INCOE Corp. The root cause of a recent part defect was reportedly the hot runner system delivering a melt that was too hot. The true root cause, however, was beyond my imagination. Here are the circumstances that prompted the molder to contact our technician. The temperature controller zones setpoint temperature was 480 o F, and the indicated actual temperature was 480 o F and stable (no fluctuations).
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