Take the 2-minute tour ×
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

Why does my hot cooktop indicator light stay on after the cooktop is cool? The indicator light never turns off.

share|improve this question
3  
It never turns off, or it just takes a while? –  Henry Jackson Aug 27 '13 at 3:52
    
What make and model? How are you measuring "cool" by hand or with a thermometer? –  Freiheit Jan 24 at 14:36

1 Answer 1

This indicator may be driven by some form of temperature sensor. If the light is staying on too long; or indefinitely, there is likely something wrong with the sensor, the sensor wiring, or the control board that interprets the signal from the sensor.

Without knowing the make and model of the stove, it's impossible to tell you where the sensor is, what type it is, how exactly to troubleshoot it, how to replace it, or if it can be adjusted.

The basic idea is that when the stove top heats up, the temperature sensor sends a signal either directly to the light, or to a control board. This causes the light to come on, and stay on as long as the stove top is above a certain temperature. When the stove top cools down, the signal is no longer sent, and the light goes out.

share|improve this answer
1  
Is it possible the stovetop just has a simple timer that keeps the warning light on for 30 minutes or so? –  Henry Jackson Aug 28 '13 at 4:11
    
@Tester101 - Is it also possible or probable that the temperature light is designed to stay on for a long time as a safety measure? Would these sensors measure the absolute temperature or would they measure the temperature relative to some room-temperature component of the stove? –  Freiheit Jan 24 at 14:38
    
@Freiheit I would think absolute temperature. –  Tester101 Jan 24 at 15:30

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.