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.
Top 6 Reasons Range Vent Hood Not Venting?
Top 5 Reasons Range Vent Hood Lights Not Working?
Top 3 Reasons Retractable Range Vent Not Working?
Top Reasons Range Vent Hood Touchpad Not Working?
Top 4 Reasons Range Vent Hood Fan & Lights Not Working?
Replace Range Vent Hood Grease Filters - Tech Tips from Repair Clinic
Range Vent Hood Hums? Range Vent Hood Troubleshooting
Range Vent Hood Loud or Noisy? Range Vent Hood TroubleshootingThe 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.
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.
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.
If the range hood is overheating, the grease filter(s) may be clogged. If a filter is very dirty it can be cleaned. Remove it and soak it in a degreasing solution until the grease is dissolved. Next, wash it with warm, soapy water to remove any traces of the degreaser. If the filter does not come clean or is damaged, replace it.
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.
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.
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.
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.
If the blower wheel or fan blade is clogged the air flow will be restricted and the vent hood can overheat. You can try cleaning the fan blade or blower wheel with dish soap and warm water. If the fan blade or blower wheel cannot be cleaned or is damaged, it will need to be replaced.
