When your Haier electric stove burner won't turn off, turn the control to Off and disconnect power at the circuit breaker until you identify the problem. The most likely cause is a damaged or cracked control knob that cannot rotate the surface element switch stem far enough to stop power. If the knob is intact, the surface element switch may have failed. Its internal contacts can fuse together and continuously send voltage to the surface element, even when the setting is Off. On Haier ranges with touchpad controls, a faulty oven control board may also send constant voltage to one burner. A shorted button or defective control panel can create the same symptom, followed by a damaged surface element board. Inspect the surface element and wiring for signs of a short, and use a multimeter only if you are comfortable testing live voltage and have the wiring diagram. Replace the defective control knob, surface element switch, control board, control panel, or surface element board as needed. Enter your Haier model number to find the exact replacement part for your electric stove.
01 - Haier Range/Stove/Oven Knob
If a range's surface element won't turn off, you should first inspect the control knob for damage. A broken knob may be unable to rotate the surface element switch stem to stop voltage being sent to the element.
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02 - Haier Range/Stove/Oven Surface Element Switch
The surface element switch sends voltage to the surface element coil. Sometimes, when the surface element switch fails, the electrical contacts inside the switch fuse together, causing the switch to send continuous voltage to the surface element. If the surface element switch is defective, replace it.
If the control knob is cracked or broken it may not be turning the stem on the switch. Inspect the control knob and confirm the switch is in the off position. If the control knob is damaged, it will need to be replaced.
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04 - Haier Range/Stove/Oven Oven Control Board
On some range models, the control board provides voltage to all of the appliance's electrical components. If the board is defective, it might send continuous voltage to a surface element even after the element has been turned off. If you've confirmed the surface element itself has not shorted and the element is controlled by a touchpad, it's likely the control board is faulty. You can inspect the board for signs of damage or a shorted component. You can also use a multimeter to test for voltage reaching the bake or broil elements or igniters after reviewing the appliance's wiring diagram.
A range's control panel can allow the user to select the heating functions for both a stovetop and an oven. If the control panel is defective, one or more of the buttons may have shorted and you will not be able to turn off the element. If you've confirmed the surface element itself has not shorted and the element is controlled by a touchpad, it's likely that touchpad or control panel is faulty.
If a range's surface element is controlled by a touchpad, it's possible the surface element board has a shorted component that is sending continuous voltage to the element. You can inspect the board for signs of burning or a shorted component. If the surface element and wiring are not shorted it is likely the surface element board is damaged and will need to be replaced.