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Kenmore Range Vent Hood is Overheating

The part(s) or condition(s) listed below for the symptom Range vent hood is overheating are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Range vent hood is overheating

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Cause 1Filter

The filters in the range hood need to be clean to have good air flow. If the filters are clogged, the blower will have a hard time moving air and the motor can overheat. Inspect the filter and clean or replace them if necessary.

Parts
Cause 2Restricted Air Duct

If the range vent hood has always been too hot, inspect the air duct. If the air duct diameter is too small or the length of the duct is too long, the air flow will be restricted, possibly causing the vent hood to overheat. Refer to the installation instructions for proper vent size and maximum length. You can also inspect the outdoor vent hood for obstructions (a bird's nest, etc.) and confirm the vent damper is operating properly.

Cause 3Damper

Most vent hoods have a damper to help keep the outside air from migrating back into the house when the vent is not in use. If the damper is stuck closed, or not opening all the way, the air flow may be restricted causing the motor to overheat.

Parts
Cause 4Blower Wheel

If the blower wheel is clogged with debris the air flow will be restricted which can cause the range vent hood to overheat. You can try cleaning the blower wheel with dish soap and warm water. If the blower wheel cannot be cleaned or is damaged, it will need to be replaced.

Parts
Cause 5Fan Blade

If the fan blade is clogged with debris the air flow will be restricted which can cause the range vent hood to overheat. You can try cleaning the fan blade with dish soap and warm water. If the fan blade cannot be cleaned or is damaged, it will need to be replaced.

Parts
Cause 6Grease Filter

Range vent hoods use one or more grease filters to collect grease and oils rising up with the steam during stovetop cooking while allowing air to pass through. If the filters are clogged with too much grease, the blower will have a hard time moving air and the blower motor can overheat. You should periodically clean the grease filters with dish soap and warm water to ensure good air flow. If the filters are excessively soiled or damaged, they should be replaced.

Parts
Cause 7Vent Damper

Most vent hoods have a vent damper to help keep the outside air from migrating back into the house when the vent is not in use. If the damper is stuck closed, or not opening all the way, the air flow may be restricted causing the motor to overheat. Inspect the vent damper for an obstruction or damage and replace if necessary.

Parts