Restore quiet and effective ventilation from your Broan S80U bathroom fan with genuine OEM replacement parts from Repair Clinic. The Broan S80U is an 80 CFM ceiling-mounted bathroom ventilation fan in Broan’s residential exhaust fan line, designed to remove moisture and odors from bathrooms up to approximately 75 square feet. Parts most frequently replaced on the S80U include the fan motor and blower wheel assembly, grille cover, and mounting bracket. Use the Broan S80U parts diagram to identify your component and browse the full Broan exhaust fan motor parts catalog.
Broan S80U Bathroom Fan Architecture: 80 CFM Ceiling Ventilation Platform
The Broan S80U is a 120-volt ceiling-mounted exhaust fan drawing approximately 1.5 amps at rated airflow. The motor assembly drives a squirrel-cage blower wheel that pulls bathroom air upward through the fan housing and exhausts it through a duct to the exterior. Unlike bath fans in Broan’s NuTone line or fans with integrated lighting, the S80U is a standalone ventilation unit without a light kit or humidity sensor. When the fan becomes noisy or loses airflow, the cause is almost always the motor and blower wheel assembly rather than any electrical fault. For repair guidance, visit the Broan exhaust fan repair help section.
Most Replaced Parts on the Broan S80U
Broan S80U Fan Motor and Blower Wheel Assembly
The motor drives the squirrel-cage blower wheel that moves air through the fan housing. On the S80U platform, the motor and blower wheel are typically replaced together as an assembly; motor bearing failure produces a grinding or squealing noise that worsens over time, and a blower wheel with accumulated lint and debris produces reduced airflow and noise from imbalance. The most cost-effective solution for an S80U that has become noisy or lost meaningful airflow is replacement of the motor and blower assembly rather than cleaning alone when the motor bearing is audibly degraded. Browse Broan exhaust fan motor parts.
Broan S80U Grille Cover
The grille cover clips to the fan housing and provides the finished appearance of the installed fan. A grille that has become discolored, cracked, or warped from heat or cleaning products can be replaced independently without disturbing the motor or housing. Replacement grilles for the S80U clip into the same mounting points as the original.
Broan S80U Mounting Bracket and Housing
The mounting bracket secures the fan housing in the ceiling cavity. If the fan rattles or feels loose despite tight grille clips, inspect the housing mounting bracket for a loose fastener or a broken tab; a bracket that has failed allows the housing to shift and produces noise from contact with the ceiling framing.
Broan S80U Bathroom Fan Parts at Repair Clinic
- Genuine Broan OEM Parts for the S80U 80 CFM Ceiling Fan Platform: Motor and blower wheel assembly, grille cover, and mounting hardware confirmed for the Broan S80U model number — not the S80U-A or NuTone variants. Browse Broan exhaust fan motor parts.
- S80U vs S80U-A Model Distinction: The S80U and S80U-A are distinct Broan models; confirm your model number from the label inside the fan housing before ordering to ensure the correct motor and grille fit.
- Motor and Blower Wheel Assembly Guidance: Our listings document that the S80U motor and blower wheel are most efficiently replaced as an assembly when motor bearing noise is present.
- 365-Day Returns and Fast Shipping: All S80U parts ship promptly. The Broan exhaust fan repair help section provides step-by-step motor replacement guidance.
Broan S80U Bathroom Fan Parts FAQ
Why is my Broan S80U bathroom fan not working?
A Broan S80U that does not run when switched on has either a failed motor, a failed switch, or no power at the fan circuit. Confirm the circuit breaker is not tripped first, then test for voltage at the fan’s wiring connections. If voltage is present but the fan does not run, the motor has failed and requires replacement.
Can I replace just the motor instead of the entire S80U unit?
Yes. The Broan S80U motor and blower wheel assembly is a separate replacement part that fits the existing fan housing. Replacing just the motor assembly preserves the installed housing and ductwork connection, which is more cost-effective than replacing the entire unit when the housing is undamaged.
Why is my Broan S80U bathroom fan making loud noise?
A grinding or squealing noise from the S80U indicates motor bearing failure. Accumulated lint on the blower wheel produces a different symptom: reduced airflow and a rhythmic imbalance noise rather than a bearing squeal. Clean the blower wheel first; if noise persists after cleaning, the motor bearing has failed and the motor and blower assembly should be replaced.
Is the Broan S80U the same as the S80U-A?
No. The S80U and S80U-A are distinct Broan model numbers with different motor and grille assemblies. Confirm your model number from the label inside the fan housing before ordering; using S80U-A parts in an S80U fan produces an incorrect fit at the mounting points and blower wheel interface.
