What you may notice
Temperature does not rise after starting
Controller shows unrealistic temperature
Heater trips MCB or protection
Heating cuts in and out unpredictably
Machine heats unevenly
Waste remains unusually wet
What you can record safely before service
- Record setpoint and displayed temperature without opening the panel.
- Note when the issue began and if feed weight or moisture changed.
- Check for visible alarm indicators, burning smell or abnormal smoke from a safe distance.
- Stop operation if overheating, burning smell or repeated electrical trips occur.
Electrical bypasses, live-panel work and reaching into moving or jammed equipment can create serious risk.
What typically needs deeper checking
Common fault categories
What this service typically covers
Check element rating, insulation condition and resistance only with power safely isolated.
Review controller setpoint, thermocouple/RTD placement and measured-vs-displayed temperature.
Inspect contactor, protective devices, terminations and cable sizing to the actual heater load.
Check process load, moisture and whether the temperature issue is due to excess feed rather than a broken component.
Do not wait for a complete shutdown
- Setpoint is never reached in a normal cycle.
- The heater trips protection repeatedly.
- Controller reads an implausible or fixed temperature.
- Heating problem continues after a known operating-process correction.
Quick answers before you book a repair
Can I replace the heater based only on its dimensions?
No. Electrical rating, voltage, mounting, thermal characteristics and protection must match the machine design.
Why does the display show 70°C but the vessel feels cold?
The sensor may be reading the wrong location or have a fault. Check the actual vessel condition safely and have sensor placement and calibration verified.
Do you repair other manufacturers’ OWC heaters?
We can review other makes after seeing the nameplate, controls and heater specification; part availability and feasibility are confirmed before quoting.