Description
Description
Ensure your refrigerator’s automatic defrost cycle runs correctly with the genuine OEM Defrost Control Timer (#WR9X520). This timer regulates alternating intervals between the cooling cycle and defrost heater operation, helping prevent frost buildup on the evaporator coil and inefficient cooling.
Please check with your maintenance technician prior to ordering to verify that this is the correct part for your appliance’s model number and defrost system. geapplianceparts.com+1
Features & Benefits
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✅ Factory-original timer module — Designed by GE to meet original equipment specifications for fit and performance. geapplianceparts.com+1
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❄️ Regulates defrost cycles — Automatically switches the refrigerator between cooling and defrost phases (approx. 15 hours cooling / 44 minute defrost cycle) according to specs. hdsupplysolutions.com+1
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🔧 Improves cooling efficiency — By ensuring defrost occurs as needed, this timer helps avoid excessive frost build-up that can degrade cooling performance and increase energy use.
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🛠 Relatively simple replacement — A compact timed clock-type control module that can be swapped for the original when diagnostics show it’s faulty or stuck.
Common Symptoms That Indicate Replacement
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The freezer or refrigerator is warming up unexpectedly and the coils are heavily frosted or iced over. partselect.com+1
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The defrost heater never turns on (or stays on too long) and you observe frost build-up on the evaporator coil.
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The compressor runs continuously or unusually long, door/drawer compartments feel warmer than normal.
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The current control module is identified with part number WR9X520 (or one of its compatible replacements) or shows signs of malfunction.
Compatible Refrigerator Models (Partial List)
(Always verify your exact model number, wiring diagram and original part number before ordering.)
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Many GE, Hotpoint and Kenmore brand refrigerators that list defrost control part # WR9X520. partselect.com+2mccombssupply.com+2
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Example listed models include: GE 363.60249000, 363.60942000, 363.60947000, 363.78162894; Kenmore models 363.68852899, 363.69965991, etc. partselect.com
Note: This is not a full list. Always check your appliance’s model tag and service diagram.
Cross Reference / Alternate Part Numbers
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AP2061721, PS310930 are known alternate numbers for this timer. mccombssupply.com+1
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Earlier or equivalent part numbers: 311013, OEM8246886. hdsupplysolutions.com
Compatibility Notes
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Confirm that your refrigerator uses a defrost control timer with 4 terminals and the same mounting/connector style as WR9X520 (per spec: 4 terminals numbered 1,4,3,2). mccombssupply.com
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Some modern refrigerators may use electronic boards or different defrost control methods; if your model uses an electronic board and not a mechanical timer, WR9X520 may not apply.
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Make sure you disconnect power to the appliance before servicing. Replacing the timer when coils are iced over or the system is not diagnosed may lead to incomplete repair.
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Because defrost issues can be caused by other components (defrost heater, thermostat, sensor, blower), we strongly recommend you check with your maintenance technician prior to ordering to verify that the timer is the correct failing component.