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zprestonAug 9, 2025
What to do if my Thermo Scientific SUPER-NUOVA+ SP88857190 Cooktop displays 'Check Heater'?
- Rrobert43Aug 9, 2025
If your Thermo Scientific Cooktop displays 'Check Heater', it could be due to several reasons. It might be an internal thermocouple short circuit, a failure in the internal thermocouple or the element, or a failure in the optocoupler/triac circuit. To resolve this, try the following: remove the short, replace the thermocouple attached to the element, replace the element, or replace the control board.