Note: This question is for the older version of this part, but we thought you might still find it helpful
The dryer runs but I get no flame. The igniter is good. Is there a test for the flame sensor? Would the limiter have anything to do with it? Is there a test for the limiter?
ANSWER Hello Joe,
The flame sensor is tested by removing one wire and testing from one side to the other. If it is good, it will read like you are touching the two meter leads directly to one another. The thermostats test the same way. The coils on the safety valve will read a resistance:
Touch the ohmmeter test leads to the
2-terminal coil. The meter should indicate
between 1000 and 1300 ohms.Touch the ohmmeter test leads to the
3-terminal coil. The meter should indicate
Pins 1 & 2 = 1300 to 1400 ohms.
Pins 1 & 3 = 500 to 600 ohms The limiter is simply the same as a thermal cutout. If it's bad you will read no continuity. If you read zero resistance it's good. The only test for the ignitor that is dependable is a current flow test with a clamp on ampmeter because when you heat it up, resistance increases. I have tested bad ignitors that read like they were good when they were cold, then they only turned red, which isn't hot enough. The current reading when the ignitor is good is between 3.2 to 3.6 amps. An ignitor will turn red and sometimes orange when it pulls 3 amps, but this is not enough current to open the gas valve.
Answered by AppliancePartsPros.com | Friday, May 04, 2012