Chosen Solution
On this dryer, it has a front circuit board behind all of the digital read outs and lights. If you put a load of clothes in it when the dryer is cool and hadn’t been run for awhile, it starts very easily by pushing the start button. After the dryer has been running, it doesn’t start when you push the start button, but will start to run if you bang on the front or top fairly hard. If the start switch was defective, it wouldn’t start at all. I am left trying to conclude if it is the main control board (which does have a starter relay module on it) or if the circuit board is not sending the signal to the main board. Update: The dryer now, when you push the start button, counts down like seconds and beeps at zero. The dryer doesn’t run though. The manual says nothing about demo mode. I have tried turning the breaker off and on and unplugging it.
Tough one. Do you get a humming noise when trying to start hot? Cause 1 Start Switch To determine if the start switch is defective, attempt to start the dryer. If the dryer hums but does not start, the start switch is not at fault. If the dryer does not respond or make any noise, the start switch could be at fault. Use a multimeter to test the start switch for continuity. If the switch does not have continuity, replace it. Cause 2 Door Switch The door switch activates when the dryer door is closed. On most dryers, the door switch makes an audible clicking sound when it activates. To determine if the door switch is working, try starting your dryer and then listen for the “click.” If the door switch makes a clicking sound, it is probably not defective. If you don’t hear a click, use a multimeter to use the door switch for continuity. If the switch does not have continuity, replace it.