Dryer intermittently runs fine, then runs several hrs with out heat and does not shut off.
Answer Hello Todd. Check the coils and see if they test good. You can test the coils using a multi-meter TJMA-DM1. The two prong coil will read 1,000-1,300 ohms, and the three prong coil will read 1,300-1,400 ohms across prongs 1&2, and 500-600 ohms across prongs 1&3. Test the coils after running the dryer for about 10 minutes. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
dryer runs normal for several heat cycles then displays cool and shuts down after 5 min. I checked vent and replaced coils and thermoster
Answer Jay, Your description indicates the tub sensor 304997 and spark gap 306130 are not sensing/feeling the wet clothes. The control board "thinks" the clothes are dry and then the control steps into the five(5) minute cool down cycle and shuts off. The sensor is located in side the drum just below the lint filter grille on the front bulkhead. To replace the spark gap, you will need to remove the two(2) Phillips head screws at the top of the dryer front panel, lean the panel out at the top, so access the 1/4 in. hex head screw that holds the spark gap to the front tumbler support assembly.