Fluctuating temperatures or control issues
This timer controls the duration and sequence of key steps in the drying process — including drum rotation
but the part number on the image/context suggests this might be a common substitute or that the context implies a similar GE heater part
you may hear squealing or thumping noises
Dryer makes loud thumping or scraping noises
WP8566184 Timer Assembly – Genuine OEM Replacement for Whirlpool, Maytag, Kenmore & Crosley Dryers CDG7500Q Fluctuating temperatures or control issuesDescription Restore correct cycle sequencing in your dryer with the WP8566184 Timer Assembly, a genuine OEM part from Whirlpool Maytag. This timer governs key functions of the dryer including the heating, tumbling and cool down phases. Whirlpool Parts+2Alliance Laundry Parts+2 When the timer fails, common symptoms include a dryer that: runs but wont heat, wont advance the cycle, runs endlessly, or doesnt start properly. Installing the WP8566184