Parts for Broan 422401: Range Hood Assembly Parts

This factory replacement cover fits select Broan ventilation units. It replaces a cracked, damaged, or missing cover to protect internal components, restore a clean finished appearance, and help maintain proper airflow and performance.

• Shields internal wiring, fan, or control components from debris and accidental contact
• Helps direct airflow through the housing for consistent operation
• Restores a secure fit if the original cover is cracked, warped, or broken
• Common symptoms include rattling/vibration, poor fit, exposed parts, or a loose/missing cover

• Disconnect power to the unit before servicing
• Support the cover and remove retaining screws or release tabs; note orientation for reassembly
• Transfer any clips, grommets, or seals from the old cover if applicable
• Reinstall securely without overtightening; verify clearance and operation before restoring power

Color: white.

This replacement fan blade restores airflow in hood and ventilation blowers by moving air through the fan assembly. Use it to replace cracked, bent, or worn blades and help reduce vibration and noisy operation. What it does:

• Spins on the blower motor to generate airflow for ventilation and exhaust.
• Replaces blades that are cracked, bent, or visibly damaged and causing reduced airflow.
• Can reduce unusual noise and vibration caused by an imbalanced or broken blade.
• Helps restore proper vent performance when airflow is weak or inconsistent.

• Disconnect power to the appliance before starting any service.
• Remove the blower housing or access panel to reach the blade; follow OEM instructions.
• Keep fasteners and spacers in order during disassembly; reassemble with original hardware unless replacements are specified.
• If vibration or noise persists after replacing the blade, inspect motor bearings, mountings, and blower housing for damage.

This mount is the replacement mounting bracket that secures range hood/ventilation components to the cabinet or chassis, restoring proper support and alignment for safe operation. What it does:

• Provides a secure attachment point for the hood or internal parts to prevent sagging or movement
• Helps maintain correct alignment for ducting and components to reduce vibration and noise
• Replaces damaged, bent, or corroded mounting hardware that can compromise fit and stability
• Commonly used when the hood shifts, sits unevenly, or produces rattling during use

• Turn off power to the appliance at the breaker before beginning any work
• Use appropriate screws/fasteners and torque to OEM recommendations; replace any stripped hardware

The Motor Assembly is an OEM part for Broan range hoods. This part is the driving force behind the extraction and circulation capabilities of your range hood, efficiently removing smoke, grease, and odors from the kitchen air. 

Causes for replacement include noticeable decreases in suction power, abnormal sounds indicating mechanical wear, or failure to start, all of which can compromise your kitchen's air quality and comfort.

Symptoms of a bad Motor Assembly include:

• A noticeable reduction in exhaust efficiency, failing to clear smoke or odors effectively.
• Increased noise levels, such as grinding, humming, or buzzing, suggesting the motor is struggling.
• The range hood not operating at all, pointing to a potential motor failure.

This retainer is a small mounting clip used in Broan ventilation hoods to hold trim, lenses, or small assemblies securely in place. Replacing a worn or broken retainer restores stable mounting and reduces vibration or rattling. What it does:

• Secures trim pieces, light lenses, or small assemblies so they stay aligned and seated
• Prevents parts from shifting or vibrating during operation
• Helps stop rattling or loose components around the hood opening
• Keeps replaceable covers and lenses from falling out when installed correctly

• Disconnect power to the appliance or turn the circuit breaker off before working on the hood
• Use common hand tools as needed; handle sharp sheet-metal edges with gloves
• Verify this retainer matches the damaged piece before installation

This switch assembly restores dependable control of your range hood or ventilation unit, helping resolve unresponsive or intermittent controls so the appliance turns on, off, and changes settings as expected.

• Provides the user interface to turn functions on/off and change settings
• Failure signs include no response on certain settings, intermittent operation, or a stuck/loose actuator
• Heat, moisture, and normal wear can degrade internal switch contacts over time
• Replacing the switch restores smooth, consistent operation

• Disconnect power at the breaker before servicing
• Access the control area and photograph wiring to document positions
• Move wires one at a time to the new switch; ensure tight, fully seated connections
• Reassemble and test all functions before finalizing

This switch assembly restores dependable control of your range hood or ventilation unit, helping resolve unresponsive or intermittent controls so the appliance turns on, off, and changes settings as expected.

• Provides the user interface to turn functions on/off and change settings
• Failure signs include no response on certain settings, intermittent operation, or a stuck/loose actuator
• Heat, moisture, and normal wear can degrade internal switch contacts over time
• Replacing the switch restores smooth, consistent operation

• Disconnect power at the breaker before servicing
• Access the control area and photograph wiring to document positions
• Move wires one at a time to the new switch; ensure tight, fully seated connections
• Reassemble and test all functions before finalizing

This damper is the vent backdraft flap that opens to let exhaust out and closes to keep outside air and odors from coming back into the appliance. It restores proper airflow control for venting systems. What it does:

• Opens when the fan runs to allow exhaust to flow through the vent
• Closes when the fan is off to prevent cold air, smells, and pests from entering
• Stops rattling or restricted airflow caused by a stuck or damaged flap
• Works as the airflow control element inside the vent housing or duct

• One damper assembly

• Disconnect power to the appliance before starting any repair
• Access the vent or hood housing per the appliance service instructions; removal of grille or access panel may be required
• Remove the old damper and any mounting hardware; install the new damper in the same orientation
• Check that the damper moves freely after installation and that duct connections are secure