Defrost mode 8145-20 controller. Robertshaw, Paragon. Ordered Feb 11, 2022. Old timer does not turn sometimes. Motor runs, but does not turn dial. Old timer about 5 years old. On further inspection, the motor runs backwards (CCW) sometimes and when it does, the dial does not turn. Switch power off and back on and sometimes it will run forward (CW), and when it runs forward, CW, the dial turns and the timer works normally. Motor direction refers to the bottom side view of the synchronous clock motor, looking at the 9 tooth output gear at 1 rpm. I don’t know of a fix, or where to find a replacement motor, so I replaced the whole timer. Motor marked 414-665 240vac 60hz cw 3w 1rpm mx-02-dic-21. New timer works great, as expected. New motor much quieter. I could hear the old one from 10 feet, the new one from one foot.Listen up - save big money but realize the outer metal case Is NOT includedExcellent productsgoodQuick shipping, good price, lower than in store (include shipping fee). Product as advertised.Bought 8145-20 in august 2015, it is November and the time gets stuck on defrost every time. contacted buyer and no response (paragon 8145-20)This was an exact replacement part.Bought july 2015, then 7 months passed, get stuck and doesnt work.This timer contains lot wire connections, I take photos old wire switch to new timers, 100% perfect, walk-in cooler running perfect, I recommend all the people should use .Arrived on time. Very good and solid product at a good price. In use 24 hours a daylooks good so far