Greetings;

I've been working at another company to help with some maintenance issues and have an issue with a thermolater that has me and the manufacturer stumped.

The unit when set at 180 Deg F and the valves are opened to the mold it only reaches about 110 and then goes back down to 90 (or so).With the valves closed to the mold the temp rises and over heats.
This unit has been in use on the machine for a year or more with 0 issues. It's a Temptek VT-275 and it's acting like it's undersized. The heaters are drawing 11.6-11.8 amps on all three legs when calling for heat, and each heater (6) ohm'd out 34.6-35.6.
Cleaned cooling valve out, found piece of crap but still had issue after reassembly.

Thought I'd share this issue for some input. The tech support has no ideas other than the H2O lines are causing it, I excluded the mold and ran thru a jumper with the same results.


Thanks

Scott