Hello. Reading thru this forum and I am having the same problem it appears. My Roper dryers heat will come on but just for a minute or two. Everything else appears to be working. i.e. timer, motor,etc. I have checked all the switches (high limit, cycling thermostat)with a ohm meter and all have continuity. Heating element checks ok and does not read that it is grounded out. Checked timer by testing black-blue connections. All is good. Vent is free of lint from unit all the way to outside. Driving me crazy. :confused: