Customer Questions and Answers for Refrigerator Defrost Timer by Whirlpool

Jay, You will need to rewire the new timer. You have a "version 2 " Cumulative compressor run application. For cumulative run timer push slotted loose timer
motor lead over & all the way down terminal number 2 with wire toward timer motor. Check and make sure the colored wires are attached to the proper terminals
1 – Black Wire 2 – Pink Wire 3 – Red Wire 4 – Orange Wire. When wired correctly to a refrigerator’s accumulated run clock, replacement timer will provide defrost every 8 hours of compressor run time after the bimetal closes. Defrost timer motors can and do get warm/hot, but the timer motor will advance and start the cooling mode in 20 to 30 minutes after the start of the defrost cycle.