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MODEL OVERVIEW
About this model: GE JES1851WB
GE JES1851WB is a white-on-white 1.8-cu-ft, 1100 W countertop microwave with a 16-inch tray. Its exact listing confirms three sensors; the family PDF documents SENSOR ERROR and LOCKED.
Measure the large white JES1851WB
JES1851WB is GE's white-on-white countertop microwave with 1.80 cubic feet of space and 1100-watt IEC output. The exact listing gives a 16-inch glass turntable and a case 23⅞ inches wide. Both measures matter: the housing needs counter clearance, and a replacement plate must engage the correct support. The PDF cover says JES1851 without the WB suffix. It is a family manual, and its feature page warns that appearance and equipment can vary. Use the exact GE product record to identify this finish and confirmed controls, then apply the manual's procedures to those controls. The glass and support must be installed for cooking even if a broad bowl fits easily inside the large cavity.
Read family guidance with exact-model scope
The exact product record confirms three sensor choices: Beverage, Popcorn and Reheat. A front-panel drawing and troubleshooting chart in the shared manual mention additional food keys, but those images do not establish them on JES1851WB. For its confirmed Popcorn control, the guide allows prepared bags of 1.75 to 3.5 ounces centered on the tray. Opening the door while POPCORN is displayed causes SENSOR ERROR. Close it, press CLEAR/OFF and begin again. The troubleshooting row gives another cause: steam was not detected within the maximum time. Then use Time Cook for more heat. Keep the outside of the food container and cavity dry and vent the microwave-safe cover, so humidity comes from the food rather than stray droplets.
Reheat one serving after steam appears
The Reheat sensor in this 1999 guide is meant for one serving of cooked food or a plate of leftovers. It first senses steam and only then begins the remaining-time countdown. During the first phase, leave the door closed. After completion, stir where possible and check cool spots; the manual warns that temperatures can vary. Bread, uncovered dishes and food needing frequent stirring are better suited to a chosen Time Cook interval from the start. Beverage, the third confirmed sensor, serves a cup; remove the heated drink carefully. The generous 1.8-cu-ft cavity does not make the single-serving Reheat algorithm suitable for a family-size casserole. For a large amount, use measured intervals with intermediate stirring and check the center before serving.
Use timed heat and weight defrost for other loads
For non-sensor tasks, JES1851WB lists Auto and Time Defrost, two-stage Time Cook and Add 30 Seconds. Auto Defrost takes the entered weight of meat, poultry or fish up to six pounds, prompting the cook to turn it. Time Defrost starts at power level three unless changed, and the guide calls for repositioning the food halfway through. Express Cook keys can launch one to six minutes at high power, while a thirty-second addition refines a running program. These routes are useful after a no-steam SENSOR ERROR because a timed setting does not need a humidity threshold. They also suit food that must stay uncovered. Enter the required duration or weight and check the door before calling a failed start a heating defect.
Care for the broad glass and control panel
The large glass plate is removable for washing, but GE warns not to put it in water immediately after cooking; a sharp temperature change can break it. Clean and dry the support, then replace both parts before another cooking test. The manual also explains LOCKED: Child Lock has disabled the keys, and holding CLEAR/OFF for about three seconds releases them. FOOD IS READY merely reminds the user that a completed dish remains inside. These are distinct from SENSOR ERROR during a humidity program. For this WB unit, start diagnosis with the precise product control list, the current message and the recent cooking sequence. Extra buttons printed in a family illustration should not be treated as proof that each unit has them.
Verified model details
The broad 16-inch tray and 23⅞-inch case require model-specific space and replacement parts.
Source for this detail · Source page: 1GE confirms Beverage, Popcorn and Reheat for this exact SKU despite more controls in the shared manual drawing.
Source for this detail · Source page: 35SENSOR ERROR concerns steam detection; LOCKED describes the intentionally disabled keypad.
Source for this detail · Source page: 26
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GE® Countertop Microwave Oven - JES1851WB - GE Appliances
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.