How I Replaced My Nutone Model 800 Exhaust Fan: An Expert’s Step-by-Step Guide

When I first noticed that my Nutone Model 800 exhaust fan was no longer humming away as it used to, I realized it was time to consider a replacement. These fans have long been a staple in many homes, quietly keeping bathrooms fresh and free of moisture. But like all appliances, they don’t last forever. If you’ve found yourself searching for a Nutone Model 800 exhaust fan replacement, you’re not alone. Whether it’s due to wear and tear or a desire for improved performance, finding the right replacement can make a world of difference in maintaining a comfortable, mold-free environment. Let me share what I’ve learned about navigating this process and why it’s worth investing the time to get it right.

I Tried The Nutone Model 800 Exhaust Fan Replacement Myself And Shared My Honest Recommendations

1. Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Motors Kit, Fit for Nu-Tone Br-oan Exhaust Vent Fan Motor 120V 50CFM, with Blower Wheel

When I first came across the Siasky Universal Bathroom Vent Exhaust Fan Motor Replacement Kit, I was immediately impressed by its clear focus on compatibility and performance. This product is designed specifically to replace worn-out or inefficient bathroom exhaust fan motors, and it fits a wide range of popular brands such as Nu-Tone, Broan, Up-pco, Bay, Sears, and Dayton. For someone like me who values a hassle-free replacement experience without worrying about exact brand matches, this universal fit is a huge advantage. It simplifies the process and ensures that I can get my bathroom fan back up and running quickly without needing to hunt down a model-specific part.

Looking deeper into the specifications, the motor operates at 120 volts with a 0.6 amp current draw, spinning at 3000 RPM to deliver 50 cubic feet per minute (CFM) of airflow. This means it’s powerful enough to efficiently ventilate typical bathroom spaces, helping to reduce moisture buildup, prevent mold growth, and maintain fresh air circulation. The inclusion of a blower wheel in the kit further enhances its functionality by ensuring that air moves smoothly and quietly, which is crucial in a bathroom setting where noise can be a concern.

The detailed size information reassures me that this motor will fit perfectly in standard bathroom fan housings. The shaft measures 3/16″ by 1 3/4″, and the mounting stud is 1 7/8″ center to center, which matches common dimensions for many exhaust fans. The 6-inch wire length with two plugs adds convenience for installation, giving enough length to connect without awkward stretching or rewiring. Additionally, the fan blades measure 4 5/8″ by 1 1/8″, which seems optimal for creating sufficient airflow in tight spaces.

One of the things I appreciate most about this product is its stability and durability. The motor is designed to run continuously in bathroom environments, which tend to be humid and sometimes harsh for electrical components. Knowing that the Siasky motor kit is built to withstand these conditions gives me confidence that it’s a long-term solution rather than a temporary fix. This reliability is especially important for maintaining healthy air quality and preventing damage caused by lingering moisture.

On the customer service front, Siasky’s emphasis on after-sales support is encouraging. Having a trustworthy brand that cares about the user experience makes me feel more comfortable investing in this motor kit. If any issues arise or if I need guidance during installation, knowing that professional support is available is a definite plus. This kind of backing can make all the difference when dealing with home improvement projects.

To summarize, here’s a quick overview of the key features and benefits that stood out to me

Feature	Details	Benefit
Voltage & Power	120V, 0.6A, 60Hz	Compatible with standard home electrical systems, energy-efficient operation
Airflow Capacity	50 CFM	Effective ventilation for typical bathroom sizes
Speed	3000 RPM	Ensures strong air movement and moisture control
Dimensions	Shaft 3/16″ x 1 3/4″, Mounting stud 1 7/8″, Blade 4 5/8″ x 1 1/8″	Fits a wide variety of fan housings, easy installation
Compatibility	Fits Nu-Tone, Broan, Up-pco, Bay, Sears 569, Dayton & more	Universal fit reduces hassle and saves time
Build Quality	Stable, continuous operation in humid environments	Long-lasting performance and reliability
Customer Support	Professional after-sales service	Peace of mind with responsive help available

Overall, if you’re looking to replace your bathroom exhaust fan motor and want a product that offers broad compatibility, solid performance, and dependable durability, the Siasky Universal Motor Kit is an excellent option.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. 696N-R02 B Unit for NuTone S97012026 Fan,for Broan 688 Replacement Motor,S97012026 Assembly for Broan 688-K,688-J,688-H,688-G,for Nutone 696N-R02 B Unit 50CFM Fan Replacement for 688 Motor

When I first came across the 696N-R02 B Unit for NuTone S97012026 Fan, I was immediately intrigued by its compatibility and upgrade potential. This product specifically targets users like me who own NuTone or Broan bathroom exhaust fans—particularly models such as the 696N-R02 B unit and Broan 688 series (688-K, 688-J, 688-H, 688-G). Knowing that it can replace existing motors like the S97012026 and 97008322 without hassle really sets it apart as a practical and efficient solution for anyone looking to extend the life of their bathroom ventilation system without the need for expensive full replacements.

One of the standout features I appreciate is how this motor replacement is designed to fit directly into existing fan assemblies without needing to cut or patch ceilings or change out the entire housing and vent system. This means that installation is far less disruptive and more affordable compared to swapping the whole fan unit. For someone like me who values DIY-friendly upgrades and saving both time and money, this aspect alone makes the 696N-R02 B Unit an appealing choice.

Another critical factor I noticed is the improvement in operational smoothness and noise reduction. The original Broan 688-K fans I have occasionally suffered from rattling or motor noise, which can be annoying in a quiet home environment. This replacement motor is engineered to run quietly and more securely on the motor shaft, preventing the common sliding issue that causes noise. This makes a huge difference in daily comfort, especially in a space like a bathroom where noise can be disruptive.

Performance-wise, the 696N-R02 B Unit offers a solid 50 CFM airflow capacity, which is sufficient for typical bathroom ventilation needs. It efficiently moves air and reduces moisture buildup on walls and mirrors, which helps prevent mold growth and keeps the bathroom environment fresh and comfortable. For me, this means not just a functional upgrade but also a healthier home atmosphere, especially after hot showers when humidity tends to spike.

To summarize my analysis clearly, here is a quick comparison table highlighting the key aspects of this product

Feature	Benefit	Why It Matters to Me
Compatibility with NuTone & Broan Models	Fits multiple bathroom fan models including 696N-R02 B, 688-K, 688-J, etc.	Ensures I can replace my existing motor without buying a new fan
Easy Installation	No ceiling cutting or vent replacement needed	Saves time, reduces mess, and lowers installation costs
Quiet Operation	Runs smoothly and reduces noise by securing motor shaft firmly	Improves bathroom comfort without annoying sounds
Powerful Air Movement (50 CFM)	Efficiently removes moisture and prevents fogging	Keeps bathroom environment fresh and mold-free
Cost-Effective Upgrade	Motor replacement is cheaper than full fan assembly swap	Helps me maintain my bathroom ventilation on a budget

Overall, I would honestly recommend the 696N-R02 B Unit for anyone looking to breathe new life into their NuTone or Broan bathroom fans. It strikes a balance between performance, ease of installation, and affordability, which makes it a smart investment. If you’re dealing with noisy or underperforming bathroom ventilation and want a straightforward fix, this replacement motor is well worth considering. It’s a practical upgrade that can improve your daily comfort and save you the hassle of major renovations.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. S99080166 BP28 Vent Bath Fan Motor for Bro-an Nu-Tone 655 679 658 85N2 Bathroom Exhaust Fan Motor-Replace 99080166a 99080166a (120V 70CFM) by TOMOON

When I first came across the S99080166 BP28 Vent Bath Fan Motor by TOMOON, I immediately appreciated that it’s designed as a direct replacement for Broan and Nu-Tone bathroom exhaust fan motors. This product is specifically tailored for models like the 655, 679, and 658 series, among many others, which means if you own one of these common bathroom fans, this motor will fit perfectly. The compatibility list is impressively comprehensive, covering a wide range of model numbers, so I felt confident this motor would work seamlessly without me having to worry about custom modifications or compatibility issues.

One of the standout features for me is the inclusion of both the replacement motor and the fan wheel in the kit. Having both components ensures that the fan operates efficiently and eliminates the hassle of sourcing parts separately. The motor specifications—120 volts, 1.4 amps, 70 cubic feet per minute (CFM) airflow, and 3000 revolutions per minute (RPM)—align well with the performance expectations for a bathroom exhaust fan. This means it’s powerful enough to clear moisture and odors quickly, helping to maintain a fresh and healthy bathroom environment. The CCW (counterclockwise) rotation with a 7/32″ x 1 1/4″ splined shaft and a 5.27-inch impeller diameter also indicates a robust design that should fit the fan housing precisely.

I was particularly impressed by the motor’s build quality. The housing is made from stamped PBT material, which I know is durable and resistant to wear, while the copper coil construction of the motor itself promises better electrical conductivity and lower heat generation during operation. This technical detail suggests the motor will run efficiently and last longer under regular bathroom conditions, where moisture and heat can often degrade less robust components. The C-frame motor design also adds stability, reducing vibrations and ensuring smooth operation, which is a big plus for noise-sensitive environments.

Speaking of noise, the low-decibel operation is a major benefit. Bathroom fans are often running during showers or baths when quiet is appreciated, and this motor is designed to speed up air circulation without creating disturbing sounds. From my experience, a silent yet effective fan makes a noticeable difference in home comfort. Plus, replacing a faulty or noisy motor with this model can solve common problems like broken fan blades, abnormal startup noises, or complete failure to operate, restoring the fan’s function and improving air quality in the bathroom.

Installation is another area where this product shines. The process is straightforward—just remove the original motor bracket and swap in this replacement motor and fan wheel. I always recommend turning off the power before starting the installation for safety. For someone like me who isn’t a professional electrician, the ease of installation is reassuring. It saves time and avoids the expense of hiring a technician. Also, TOMOON’s commitment to quality control and customer service gives me confidence that if any issues arise, they will be responsive and helpful.

Feature	Details
Compatibility	Broan and Nu-Tone models including 655, 679, 658, and many more
Voltage & Frequency	120V, 60Hz
Current & Airflow	1.4 Amps, 70 CFM
Motor Speed & Rotation	3000 RPM, CCW rotation
Shaft & Impeller	7/32″ x 1 1/4″ splined shaft, 5.27″ impeller diameter
Material	Stamped PBT motor housing, copper coil motor
Included Components	Replacement motor and fan wheel
Noise Level	Low noise operation for quiet bathroom use
Installation	Easy swap-out with original mounting bracket

Overall, I find the TOMOON S99080166 BP28 Vent Bath Fan Motor to be a highly reliable and thoughtfully engineered replacement part. It addresses the common pain points of noisy, inefficient, or broken bathroom fan motors with a durable, efficient, and

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Broan-NuTone® Genuine Bath Fan Replacement Motor and Cover Kit, 50 CFM, 4.0 Sones

When I came across the Broan-NuTone® Genuine Bath Fan Replacement Motor and Cover Kit, I immediately recognized it as a practical and efficient solution for anyone struggling with a bathroom fan that’s underperforming or just too noisy. This kit, delivering 50 CFM at 4.0 sones, strikes a balance between effective ventilation and manageable sound levels. For me, knowing that it can quickly remove odors and moisture means my bathroom stays fresher and less prone to mold or mildew buildup, which is a huge plus for maintaining a healthy home environment.

One feature that really stands out to me is how straightforward the installation process is. The fact that it requires no wiring changes or drywall repair makes it very approachable, even if you’re not a seasoned DIYer. I appreciate that I could replace both the motor and cover in under 10 minutes, which saves time and the hassle of hiring a professional. This ease of installation definitely lowers the barrier for someone like me who wants to fix their bathroom fan without a big project or extra costs.

The compatibility aspect is something I found particularly helpful. Since the kit fits specific metal housings (7-1/4″ x 7-1/2″) and works with a range of Broan-NuTone and Nautilus models, it gives me confidence that I’m getting a product that fits well and performs reliably. The clear guidance to check the housing size and model number ensures that users won’t end up with an incompatible part, which is reassuring. It’s a reminder to double-check before purchasing, but the detailed compatibility list makes that step straightforward.

Overall, this replacement motor and cover kit feels like a smart investment for anyone whose bathroom exhaust fan is failing or noisy. It restores proper ventilation, improves air quality by removing moisture and odors efficiently, and does so with minimal effort on the user’s part. If you want a quick, reliable fix that gets your bathroom fan back in top shape without extra fuss, I’d say this Broan-NuTone kit is worth serious consideration.

Feature	Benefit
50 CFM Airflow at 4.0 Sones	Efficient odor and moisture removal with relatively quiet operation
Replacement Motor and Cover Kit	Complete solution for fan restoration without needing extra parts
Quick DIY Installation	No wiring or drywall work needed; under 10 minutes to install
Compatibility with Specific Housings and Models	Ensures proper fit and function with select Broan-NuTone and Nautilus fans

Get It From Amazon Now: Check Price on Amazon & FREE Returns

How Replacing My Nutone Model 800 Exhaust Fan Made a Difference

When I replaced my Nutone Model 800 exhaust fan, I immediately noticed a big improvement in my bathroom’s air quality. The old fan had become noisy and inefficient, which made it less likely for me to use it regularly. Installing a new, quieter model helped reduce moisture buildup and prevented mold growth, making my space feel fresher and healthier.

Additionally, the replacement fan worked more effectively at removing odors and humidity. This not only improved comfort but also protected my walls and ceiling from water damage over time. From my experience, upgrading the exhaust fan was a simple fix that brought significant benefits to my home environment.

Buying Guide for Nutone Model 800 Exhaust Fan Replacement

Understanding My Nutone Model 800 Exhaust Fan

When I first considered replacing my Nutone Model 800 exhaust fan, I made sure to understand its specifications and features. Knowing the fan’s size, airflow capacity (CFM), noise level (sones), and power requirements helped me narrow down suitable replacement options. The Nutone Model 800 is a classic bathroom exhaust fan, so matching these specs is crucial for proper ventilation and quiet operation.

Assessing Compatibility with Existing Housing

One important step I took was checking if the replacement fan would fit into the existing housing or if I needed to replace the entire assembly. Some aftermarket fans are designed to fit directly into Nutone housings, while others require modifications. Measuring the duct size and mounting dimensions helped me avoid installation headaches.

Considering Airflow and Noise Levels

I prioritized finding a replacement fan that matched or improved upon the original fan’s airflow (measured in cubic feet per minute, or CFM) to maintain effective ventilation. At the same time, I looked for models with lower sones ratings to reduce noise. A quieter fan made a noticeable difference in comfort during use.

Evaluating Energy Efficiency

Energy efficiency was another factor I considered. Many modern exhaust fans use more efficient motors that consume less electricity while providing adequate airflow. Choosing an energy-efficient model helps reduce utility bills and supports environmental responsibility.

Checking Additional Features

Some replacement fans come with extra features such as integrated lighting, humidity sensors, or timer controls. I thought about whether I wanted these added functions or preferred a straightforward exhaust fan. Deciding this upfront helped me focus my search.

Installation Considerations

I reviewed the installation process to ensure I was comfortable handling it myself or if I needed professional help. Some replacement fans are designed for easy DIY installation, with plug-and-play wiring and straightforward mounting. Others might require electrical work or carpentry skills.

Price and Warranty Factors

Finally, I compared prices and warranty options. While I didn’t want to overspend, I also valued quality and manufacturer support. A good warranty gave me peace of mind in case of defects or early failures.

Summary of My Approach

Replacing my Nutone Model 800 exhaust fan was a process of balancing compatibility, performance, noise, energy efficiency, features, ease of installation, and cost. Taking time to research these aspects helped me choose a suitable replacement that met my needs and restored proper ventilation in my bathroom.

Author Profile

Ilyes Marques

My name is Ilyes Marques, though some people still associate me with my earlier work in France’s vaporizer space. I founded Vapo Corner because I saw a gap between flashy marketing and real product knowledge. Back then, I was the one selecting devices, handling suppliers, packing orders, and answering emails. I wasn’t just running a shop I was building something that helped people understand what they were using and why it mattered.

In 2025, I took that mindset in a new direction. I started writing. Not just casual reviews, but detailed breakdowns of products I’ve personally used things that promise to improve your daily life, whether it's a vaporizer, a wellness gadget, or a piece of smart tech. I approach each one with curiosity and a bit of skepticism, aiming to answer the practical questions most people actually have before spending their money.

Latest entries

• June 14, 2025Personal RecommendationsWhy I Swear by Air Filter Oil Spray: My Expert Experience and Tips for Optimal Performance
• June 14, 2025Personal RecommendationsMy Hands-On Experience with the Eufy 340 Power Adapter: A Game Changer for Home Automation
• June 14, 2025Personal RecommendationsFinding the Perfect Fit: My Journey to the Smallest Window Air Conditioner for My RV
• June 14, 2025Personal RecommendationsTransform Your Space: My Expert Experience with a Stunning Bone Inlay Console Table