The Stovebolt Site Forums The Shop Area The Electrical Bay Zeroing temp gauge to sender

Hey Tony,

I think that is called an NTC thermister or Negative Thermal Coefficient. Sounds like room temp is 710 Ohms and 212 degrees is 145 Ohms.

If putting a 30 Ohm resistor in series with the sender keeps it from pegging on hot, sounds like the sender is internally shorted out.