Ge Refrigerator Defrost Timer WR9X489 For Ge Refrigerator Timer Tmdj830rb9 Exact Replacement Refrigerator Defrost Control Timer for GE part number WR9X 502. 4 Terminals are on the timer, numbered 1,4,3 2. Frequency 6 hour 25... Refrigerator Defrost Timer TMDJ830RB9 for GE WR9X502 Timer Motor is rated 1/3HP 10A 120VAC. General Electric WR09X10049 Defrost Control Replacement for numbers AP2061708, PS310869, 162D6022P003 and WR9X502. Designed to fit specific General Electric manufactured refrigerator models including Hotpoint and RCA. The durable construction means that these tools are ideal for replacing damaged linear knurling wheels, providing a reliable solution for your machining needs