If your Haier oven meat thermometer is not working, the oven probe is the most likely cause. The probe's resistance changes as its temperature changes, and an open circuit when tested with a multimeter means the probe has failed and should be replaced. A faulty control board is the next most likely problem. When the probe is connected, the control board reads its resistance and displays the food temperature, so the board may be defective if the probe and jack test good but the oven still shows no temperature or a probe error. A defective door switch can also prevent the meat thermometer from operating because some Haier ovens require the door to be closed before the control board activates the probe circuit. Less common causes include a dirty, corroded, or damaged probe receptacle, or a failed oven control board. Check the probe jack for clean, secure contact and test the door switch for continuity when actuated. Enter your Haier oven model number to find the exact replacement meat probe, control board, door switch, receptacle, or oven control board for your appliance.
01 - Haier 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.