Is your oven meat thermometer not working? The meat probe is the most likely cause. The probe changes resistance as its temperature changes, and an open circuit on a multimeter test means the probe has failed and needs replacement. If the probe tests good, check the range or oven control board. The control board monitors the food temperature when the probe is connected, so a board that does not respond can cause an oven probe error or make the meat thermometer not work. A defective door switch is less common, but some ovens require the door to be closed before the probe operates. Test the door switch for continuity when activated and replace it if it fails. Also inspect the probe jack, called the receptacle, for corrosion, damage, or poor contact. A damaged receptacle can prevent the probe from being detected. On some models, an oven control board may be separate from the main control board and can also fail. Before ordering an oven probe, receptacle, door switch, or control board, enter your model number to find the exact replacement part for your range, stove, or oven.
01 - Range/Stove/Oven Meat Probe
The meat probe resistance changes with the temperature of the probe. If the probe shows an open circuit when tested with a multimeter, the probe is bad and will need to be replaced.
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When the probe is plugged into the jack, the control board monitors the food temperature from the probe. If the temperature probe and jack are good but the control board is not responding, the control board is likely bad.
Some oven meat thermometers will not function properly unless the oven door is closed which activates a door switch to alert the control board that the door is closed. If the door switch is defective, the oven meat thermometer may not work. To determine if the switch is defective, use a multimeter to test it for electrical continuity when actuated. If the door switch does test appropriately for continuity, replace it.
The meat probe jack or receptacle needs to be clean and making good contact with the meat probe. If the receptacle appears corroded or damaged, the component should be replaced.
When the probe is plugged into the jack, the oven control board monitors the food temperature from the probe. If the temperature probe and jack are good but the control board is not responding, the control board is likely bad.