Range hood won't turn off
Common reasons your range hood won't turn off
The most common reasons your range hood won't turn off are a faulty thermal switch, defective fan switch or an inoperative electronic control board.
67% of the time it's the
Thermal Switch
14% of the time it's the
Fan Switch
14% of the time it's the
Electronic Control Board
5% of the time it's the
Something else
Common range repair parts you may need
Replacing one of these range parts may fix your problem.
Thermal Switch Replacement
If the thermal switch on a range hood malfunctions, it might fail to activate the blower fan as intended when high temperatures are detected above the cooktop, or it might not deactivate the fan when temperatures cool down. Diagnosing issues with a thermal switch in a range hood can be challenging due to its location and complexity. Therefore, it's advisable to have a Sears Home Services professional diagnose and repair any problems with the switch in your range hood.
Fan Switch Replacement
Mounted on the range hood control panel, the fan switch activates the blower fan motor at the selected speed. The fan switch may need replacing when the fan won't turn on, won't turn off or won't spin at the selected speed. It's difficult to reach and diagnose the fan switch in some range hoods, so having a repair technician perform the diagnosis may be required. The technician will be able to determine whether the fan switch needs to be replaced.
Electronic Control Board Replacement
When the electronic control board in a range hood is not functioning, it can result in various malfunctions, such as a loss of power or irregular behavior from the blower fan or lights. Additionally, it may prevent the hood from turning off as expected. This board acts as the central control hub for the range hood, overseeing functions like fan speed regulation and lighting. If the control board malfunctions, it can disrupt communication between different parts of the hood. You might notice unusual noises like chattering or clicking, along with a burning smell. Given the potential impact on multiple components, it's wise to have a Sears Home Services expert run diagnostic tests to determine if the board needs replacement.
What to expect when you experience a range hood won't turn off issue
How to resolve a hood won't turn off problem
Fixing most hood won't turn off problems usually involves replacing the thermal switch, fan switch or electronic control board. A thorough diagnosis is key, however, as there could be another problem. An accurate diagnosis is essential to understanding how much the repair will be and fixing the issue effectively.
Sears Home Services solutions for a range hood that won't turn off
If a range hood won't turn off, there could be several possible explanations. To avoid replacing unneeded parts, we recommend scheduling range hood repair with a local Sears Home Services professional who can perform diagnostic tests to identify the root cause of the problem. Our technicians possess extensive experience in diagnosing a wide range of failures associated with ranges.
What to watch for with a range hood won't turn off diagnosis
The process of identifying issues with modern appliances demands a thorough understanding and specialized training. Merely swapping out parts without employing accurate diagnostic techniques may not effectively resolve range issues. With significant advancements in appliance technology over the past decade, contemporary models now incorporate sophisticated electronic components that pose considerable challenges for troubleshooting. Consequently, do-it-yourself repairs on modern appliances have become increasingly complex
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Repair Range Resources
Learn how gas stoves work and how to safely use the cooktop and oven.
Learn how a pressure regulator works on a gas range.
Learn how an electric range works and how to troubleshoot common problems.
Need help replacing a burnt out stove element? Trust Sears Home Services for professional stove repairs and replacements.
Glossary Terms
BTU, or British Thermal Unit, measures the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.
A thermocouple is a sensor used for measuring temperature, consisting of two different metal wires joined at one end, which generate a voltage proportional to temperature changes.
A K-type thermocouple is a sensor used for temperature measurement, consisting of two dissimilar metal wires that generate a voltage proportional to temperature changes, widely recognized for its accuracy and wide temperature range.
A range sensor in a kitchen stove or oven is a technologically advanced feature that detects and regulates the temperature within the oven, ensuring precise cooking conditions for optimal culinary results.