My daughter bought Admiral Dryer 3 years ago and has worked great until recently. It stopped heating during cycle, she took many parts off and had them all tested. Couldn't find the issue. So next she is checking the timer. She had tested heating element, and every fuse on the back of dryer. All worked goid. Can't get timer tested so wondering if it's the timer that went out. Any advise to what could be the problem? She is perplexed to what's causing the dryer not heating. Please help!!