Range vent hood motor is loud or noisy: Common Causes & How to Fix
1Range Vent Hood Blower Motor
Most Common Solution
Repair Instructions:
The blower motor is making a humming noise but the fan is not spinning. This typically means the bearings that let the motor shaft spin freely are worn out. Some older, bigger motors have openings to add oil. If your motor has these oil holes, try adding oil to the bearings to get the fan spinning freely again. If oiling the bearings does not fix the problem, or if you can't lubricate the motor, you will need to replace the blower motor. Motors without oil holes need to be replaced when the bearings wear out and cause the humming noise.
How to Replace Range Vent Hood Blower Motor
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Turn off power and disconnect electrical supply - Locate the circuit breaker for the vent hood and turn it off. Then disconnect the wires leading to the blower motor.
- Remove filters or baffles - Remove any filters, baffles or panels that are in the way of accessing the blower motor.
- Remove fan blade - Use a screwdriver to remove the screw holding the fan blade onto the blower motor shaft. Carefully remove the fan blade.
- Remove motor mounting screws - Locate mounting screws or nuts holding the blower motor in place. Remove them so the motor can be taken out.
- Disconnect wiring - Disconnect any remaining wiring connected to the blower motor's wiring harness or terminals.
- Remove old blower motor - Carefully maneuver the old blower motor out of the vent hood. Make note of how it was positioned.
- Install new blower motor - Place the new blower motor into position, lining up any mounting holes or hardware. Reconnect wiring.
- Secure blower motor - Replace any mounting screws or hardware to secure the new blower motor.
- Replace fan blade - Carefully replace the fan blade onto the new blower motor shaft in its original position.
- Replace baffles and panels - Put back any filters, baffles or access panels.
- Restore power and test - Restore power to the vent hood. Test that the new blower motor and fan are working properly.
2Range Vent Hood Vent Fan Motor
Most Common Solution
Repair Instructions:
The vent fan motor is making a humming noise but the fan is not spinning. This typically means the bearings that let the motor shaft spin freely are worn out. Some older, bigger motors have openings to add oil. If your motor has these oil holes, try adding oil to the bearings to get the fan spinning freely again. If oiling the bearings does not fix the issue, or if you can't lubricate the motor, you will need to replace the exhaust fan motor. Motors without oil holes need to be replaced when the bearings wear out and cause the humming noise.
How to Replace Range Vent Hood Vent Fan Motor
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Turn off power and disconnect electrical supply - Locate the circuit breaker for the vent hood and turn it off. Then disconnect the wires leading to the vent fan motor.
- Remove filters or baffles - Remove any filters, baffles or panels that are obstructing access to the vent fan motor.
- Remove fan blades - Use a screwdriver to remove the screws holding the fan blades onto the motor shaft. Carefully remove the fan blades.
- Remove motor mounting screws - Locate the mounting screws or nuts holding the vent fan motor in place. Remove them so the motor can be taken out.
- Disconnect wiring - Disconnect any remaining wiring connected to the vent fan motor's wiring harness or terminals.
- Remove old motor - Carefully maneuver the old vent fan motor out of the vent hood. Make note of how it was positioned.
- Install new motor - Place the new vent fan motor into position, lining up any mounting holes or hardware. Reconnect wiring.
- Secure motor - Replace any mounting screws or hardware to secure the new vent fan motor.
- Replace fan blades - Carefully replace the fan blades onto the new motor shaft in their original positions.
- Replace baffles and panels - Put back any filters, baffles or access panels that were removed.
- Restore power and test - Restore power to the vent hood. Test that the new vent fan motor and blades are functioning properly.
3Range Vent Hood Blower Wheel
Most Common Solution
Repair Instructions:
Something could be stuck in the blower wheel, stopping it from spinning. Or, the blower wheel might be rubbing against the blower housing. To check, try spinning the blower fan by hand. If it doesn't spin freely, look for blockages in the blower wheel. Also make sure the wheel isn't rubbing on the housing. If nothing is blocking it but the wheel still doesn't spin easily, you'll need to replace the blower wheel. A blower wheel that doesn't spin freely could mean it's damaged and needs replacement. Even if it's not obstructed, a tight spinning wheel should be replaced.
How to Replace Range Vent Hood Blower Wheel
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Turn off power and disconnect electrical supply - Locate the circuit breaker for the vent hood and turn it off. Disconnect the wires leading to the blower motor.
- Remove filters or baffles - Remove any filters, baffles or panels that are obstructing access to the blower wheel.
- Detach ductwork - Detach any ductwork connected to the blower housing so the wheel can be accessed.
- Remove blower wheel retaining screw - Locate and remove the screw that secures the blower wheel to the motor shaft.
- Slide blower wheel off shaft - With the retaining screw removed, carefully slide the old blower wheel off the motor shaft.
- Install new blower wheel - Carefully slide the new replacement blower wheel onto the motor shaft until it is fully seated.
- Secure with retaining screw - Insert and tighten the blower wheel retaining screw to secure the new wheel to the shaft.
- Reattach ductwork - Reconnect any ductwork that was detached from the blower housing.
- Replace filters and baffles - Put back any filters, baffles or access panels.
- Restore power and test - Restore power to the vent hood. Turn on the blower and test for proper air movement.
4Range Vent Hood Fan Blade
Most Common Solution
Repair Instructions:
Make sure the fan blade spins freely. If it doesn't, check if the blade is rubbing against the blower housing. Inspect the fan blade for damage. If the blade is damaged, install a new one.
How to Replace Range Vent Hood Fan Blade
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Turn off power and disconnect electrical supply - Locate the circuit breaker for the vent hood and turn it off. Disconnect the wires leading to the fan motor.
- Remove filters or baffles - Remove any filters, baffles or panels that are obstructing access to the fan blade.
- Remove fan blade retaining screws - Locate the screws securing the fan blade to the motor shaft. Remove the screws using a screwdriver.
- Slide fan blade off motor shaft - With the retaining screws removed, carefully slide the fan blade off the motor shaft.
- Inspect and clean fan motor shaft - Clean the motor shaft and remove any dirt or debris. Inspect the shaft for damage.
- Slide new fan blade onto shaft - Carefully slide the new replacement fan blade fully onto the motor shaft.
- Secure with retaining screws - Insert and tighten the fan blade retaining screws to secure the new blade to the shaft.
- Replace filters and baffles - Replace any filters, baffles or panels that were removed to access the fan blade.
- Restore power and test - Restore power to the vent hood. Turn on the fan and ensure the new blade rotates properly.
5Range Vent Hood Exhaust Fan Motor
Most Common Solution
Repair Instructions:
The blower motor makes a humming noise but the fan doesn't spin. This usually means the bearings that allow the motor shaft to spin freely are worn out. Some older, bigger motors have openings to add oil. Try adding oil to the bearings to get the fan spinning freely again. If oiling the bearings doesn't fix it, or if you can't oil the motor, you'll need to replace the exhaust fan motor. Motors without oil spouts need to be replaced when the bearings wear out.
How to Replace Range Vent Hood Exhaust Fan Motor
-
Turn off power and disconnect electrical supply - Locate the circuit breaker for the vent hood and turn it off. Then disconnect the wires leading to the motor.
- Remove filters or baffles - Remove any filters, baffles or panels that are in the way of accessing the fan motor.
- Remove fan blades - Use a screwdriver to remove the screws holding the fan blades onto the motor shaft. Carefully remove the fan blades.
- Remove motor mounting screws - Locate mounting screws or nuts holding the motor in place. Remove them so the motor can be taken out.
- Disconnect wiring - Disconnect any remaining wiring connected to the motor's wiring harness or terminals.
- Remove old motor - Carefully maneuver the old motor out of the vent hood. Make note of how it was positioned.
- Install new motor - Place the new motor into position, lining up any mounting holes or hardware. Reconnect wiring.
- Secure motor - Replace any mounting screws or hardware to secure the new motor.
- Replace fan blades - Carefully replace the fan blades onto the new motor shaft in their original positions.
- Replace baffles and panels - Put back any filters, baffles or access panels.
- Restore power and test - Restore power to the vent hood. Test that the new motor and fan are working properly.
6Range Vent Hood Fan Motor
Most Common Solution
Repair Instructions:
The blower motor is making a humming sound but the fan is not spinning. This typically means the bearings that allow the motor shaft to spin freely are worn out. Some older, larger motors have openings to add oil. If your motor has these oil spouts, try adding oil to the bearings to get the fan spinning freely again. If oiling the bearings does not fix the issue, or if you cannot lubricate the motor, you will need to replace the exhaust fan motor. Motors without oil spouts need to be replaced when the bearings wear out and cause the humming sound.
How to Replace Range Vent Hood Fan Motor
-
Turn off power and disconnect electrical supply - Locate the circuit breaker for the vent hood and turn it off. Then disconnect the wires leading to the motor.
- Remove filters or baffles - Remove any filters, baffles or panels that are in the way of accessing the fan motor.
- Remove fan blades - Use a screwdriver to remove the screws holding the fan blades onto the motor shaft. Carefully remove the fan blades.
- Remove motor mounting screws - Locate mounting screws or nuts holding the motor in place. Remove them so the motor can be taken out.
- Disconnect wiring - Disconnect any remaining wiring connected to the motor's wiring harness or terminals.
- Remove old motor - Carefully maneuver the old motor out of the vent hood. Make note of how it was positioned.
- Install new motor - Place the new motor into position, lining up any mounting holes or hardware. Reconnect wiring.
- Secure motor - Replace any mounting screws or hardware to secure the new motor.
- Replace fan blades - Carefully replace the fan blades onto the new motor shaft in their original positions.
- Replace baffles and panels - Put back any filters, baffles or access panels.
- Restore power and test - Restore power to the vent hood. Test that the new motor and fan are working properly.