MODEL PROFILE
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MODEL OVERVIEW
About this model: GE JES1456BJ
The black-on-black JES1456BJ is GE's 1.4-cu-ft, 1100 W countertop microwave with a 14.1875-inch tray. Its linked JES1456 guide documents SENSOR ERROR and LOCKED.
Check the black casing and glass size
JES1456BJ is a black-on-black GE countertop microwave with a 1.40-cubic-foot cavity and 1100-watt IEC output. The exact GE listing gives an overall width of 21⅞ inches and a 14.1875-inch glass turntable. Those dimensions matter for counter clearance and especially for replacement glass: a plate from another 1.4-cu-ft GE may have a different diameter. The linked PDF cover says JES1456, and the product page establishes the BJ appearance and dimensions. Its turntable and support must both be installed for use. When a broad dish seems to drag, examine the support and dish clearance before concluding that the motor or the heating system has failed. The black touch panel also has settings that can make it appear quiet without a defect.
Diagnose the sensor's two failure paths
The exact unit lists five sensor buttons: Beverage, Popcorn, Potato, Reheat and Vegetables. They react to food steam, so the cavity and outside of the vessel should be dry, while a microwave-safe cover should vent. The manual's Popcorn setting takes prepackaged bags from 1.75 to 3.5 ounces. Opening the door before steam is found, while POPCORN is still displayed, produces SENSOR ERROR. Close, press CLEAR/OFF and begin again. On physical page 31 the troubleshooting row identifies a second cause, steam not sensed within the maximum time. Then choose Time Cook for more heat. Do not repeat a sensor feature on the same portion immediately: GE warns that a second automatic run can severely overcook it. The event, not merely the error name, directs the next step.
Use the food-specific settings carefully
Reheat is intended for one cooked serving or a plate of leftovers. A large casserole can exceed what its steam estimate handles well, and the manual favors Time Cook when more heat is needed after the countdown. Vegetables is more specific: press once for fresh, twice for frozen and three times for canned. The guide instructs a quarter cup of water per fresh serving and lets the operator change some automatic settings by ten percent with key 1 or 9 soon after selection. Canned-vegetable adjustment may be unavailable on some family variants; use the button response on this unit as the authority. Food that needs a crisp dry finish is better heated by a method selected for that texture, not repeatedly by a moisture sensor.
Choose a direct time or weight program
For food without a suitable sensor program, JES1456BJ offers ten power levels and Time Cook I and II. The second stage can change both duration and power automatically after the first, useful when a dense portion must start quickly but finish more gently. Auto Defrost is for appropriate meat, poultry and fish up to six pounds in the JES1456 guide; enter the weight accurately and turn at the prompts. Time Defrost allows direct control for other foods. Express Cook and Add 30 Seconds offer short heating without relying on steam detection. If a timed program will not start, check that duration or defrost weight has actually been entered, the door closes securely and an earlier selection was cleared. Those simple checks are listed before the sensor message in the troubleshooting chart.
Restore a hidden or locked display
The exact model includes Child Lock and Display On/Off. Holding zero for about three seconds hides or restores the idle clock; it does not function during a cooking feature. That dark screen is distinct from LOCKED, which the next troubleshooting page identifies as a locked keypad. Hold CLEAR/OFF for about three seconds to unlock. A third condition, SENSOR ERROR, follows the sensor program's steam stage and has its own restart or Time Cook instructions. Notice which text appears and which operation was selected. After cleaning the broad glass tray, replace its support and test an appropriate short timed cycle. This separates a setting, a misplaced dish and a sensor interruption without treating every unresponsive-looking panel as a service fault.
Verified model details
The precise black model has a large 14.1875-inch glass tray within a 21⅞-inch-wide case.
Source for this detail · Source page: 1Its sensor error chart distinguishes early door opening from missing steam.
Source for this detail · Source page: 31Vegetable controls use three food states and can be adjusted ten percent just after selection.
Source for this detail · Source page: 24
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
GE® 1.4 Cu. Ft. Countertop Microwave Oven - JES1456BJ - GE Appliances
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.