WP3977678 - Whirlpool Dryer Timer

This Whirlpool Dryer Timer (WP3977678) is a genuine part for Whirlpool dryers. It's also known as an electromechanical timer, and its primary function is to sequence dryer operating modes and limit run durations for safety. By rotating gear motors, it advances cams to activate cycle steps like tumbling and heating at the proper intervals up to 60 minutes, ensuring your laundry is dried efficiently without risk of overheating. Jammed timers, which run continuously requiring replacement, are a common symptom that your timer may be failing. Proper timers automatically schedule safe drying programs, preventing the hazards that come from overheating due to malfunctions. Before purchasing, verify your dryer's model number for compatibility.