Eric for Model Number MGDB725BW0 Is a fluctuating reading on a multimeter for the flame sensor mean it is bad? From my understanding, a good flame sensor should read 0 ohms meaning it has continuity. There is times when it reads 0 but if i remove the probes and place them on the terminals again, the reading fluctuates to different numbers and not a consistent reading.
Answer Hello Eric, and thank you for your question. Continuity with a flame sensor is a resistance reading less than 1 Ohm. Generally speaking, a flame sensor WP338906 is the least likely cause of failure if a dryer fails to heat. However, if an igniter glows and stays glowing, the most likely cause is the igniter 279311 has weakened and is failing. Read More... Answered by AppliancePartsPros.com | Monday, October 27, 2025