When your Garland oven meat thermometer is not working, the meat probe is the most likely cause. The probe's resistance changes as its temperature changes, and an open circuit on a multimeter indicates that the probe needs replacement. If the probe tests good, the control board may not be reading the temperature through the probe jack. Some Garland ovens also require the door to be closed before the oven probe works, so test the door switch for continuity when actuated. A dirty, corroded, or damaged receptacle can prevent the probe from making proper contact and may cause an oven probe error or inaccurate temperature reading. Less commonly, the oven control board itself may have failed. Before replacing a part, inspect the probe, probe jack, wiring, and connections, and use a multimeter where appropriate. This troubleshooting applies to common meat thermometer not working and temp probe not working problems on Garland range, stove, and oven models. Enter your model number to find the exact replacement meat probe, receptacle, door switch, or control board for your specific Garland range, stove, or oven.
01 - Garland 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.