17 Nov The temperature controller on my Delatech 858 has four dashes (- – – -) across the readout and our tool is not heating up. What do we check?
Nine times out of ten this is an open thermocouple. Disconnect the thermocouple and “ohm it out” — if it is open it is bad. If it is not open, then replace the controller by taking it directly out of the front (don’t try to take it out though the back of the unit).
If you end up needing a new controller for the Delatech 858 scrubber, please contact Critical Systems.