Kitchenaid Refrigerator KSRF36DTX02 Won't start or doesn't start

The Whirlpool Defrost Timer is an OEM replacement part for Whirlpool refrigerators. The defrost timer regulates the automatic defrost cycle, which prevents ice buildup on the evaporator coils in the freezer compartment by sending a signal to the defrost heater to turn on and melt any ice buildup on the coils. 

Causes of a bad defrost timer can include mechanical wear over time, electrical failures, or internal component damage. Prolonged usage and voltage spikes can also affect the timer's functionality.

Symptoms of a bad Defrost Timer include:

• Excessive frost buildup in the freezer compartment
• The refrigerator or freezer not maintaining the set temperatures
• Unusual noises coming from the appliance 
• The appliance running continuously without cycling off

This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.

This Power Disconnect Switch is the refrigerator's on/off service switch. It interrupts incoming power when actuated, allowing safe servicing or resetting of the unit without unplugging it and helping prevent unintended operation when access panels are open. What it does:

• Interrupts electrical power to the unit when switched off or tripped
• Provides a dedicated service disconnect for safe maintenance and resets
• Common symptoms: no power, intermittent shutdowns, or the unit won't stay on unless the switch is held/positioned
• Visual clues: broken actuator or heat-discolored/loose terminals

• Power disconnect switch only

• Disconnect power at the breaker before servicing
• Access the switch location; on many built-in units it's behind the top grille or control panel
• Move wires one at a time to the new switch to maintain correct orientation
• Restore power and verify the switch cleanly turns the unit on and off