QT Series Very Quiet 110 CFM Ceiling Bathroom Exhaust Fan with Humidity Sensing, ENERGY STAR*

I had these put into my new house by the home builder. They do get plugged up with dirt very easily so you have to clean them and the cover doesn't come off and on easily. I had one that I had to completely take the cover off and the red wire to the humidity sensor came off and it stopped working. That little sensor plug is not well built. Otherwise the other fans are working great and turn off and on when humidity is sensed, even when the power switch is in the off position.

Fan works but continued issues with the humidity sensor. Sensor controller has already been replaced once under warranty but within a year, it is having undesired operation again. The fan will randomly turn on in the middle of the day in a low humidity (30%) environment. When working correctly; during a shower, the fan will cycle on and off in 5 minute intervals until the humidity is below 80%. High airflow and quiet fan works great otherwise. Replaced a very noisy fan.

One of our fans has been making a loud noise about 18 months of use

The unit was received on time and in good condition. I installed it in a second bath without much difficulty. I ran a 6" diameter insulated flex duct to a roof vent. I installed an optional wall switch with GFCI per the instructions. After many tries during my initial attempt to operate the unit, I was unable to get the humidity sensor to react properly. My trouble shooting indicated it was most likely a bad humidity sensor. I'm a mechanical engineer so I have a pretty good understanding of how it should be working in conjunction with the timer and humidity settings. After informing Broan of the problem, they sent me a replacement control unit rather than the humidity sensor I expected. Not sure why. I replaced the control unit and that did not fix the problem. Once again, I informed Broan and explained that my trouble shooting indicated the problem is with the humidity sensor, not likely the control unit. They then sent me a replacement sensor assembly (cover with sensor attached). I replaced that cover assembly and was then able to get the sensor to work as it should, i.e., timer setting and humidity setting. The unit has worked well since then (a few months of operation now) however on occasion, the blower does not shut off automatically as it should per the timer and sensor setting. I believe this issue was mentioned in the instructions as probably due to abrupt changes in the ambient temperature and humidity. I am able to turn the unit off with the on-off switch wall switch I installed. It has always then reset ok after turning its power back on with the switch. I would definitely recommend installing an on-off switch (per the instructions) so that you have manual control when / if needed. I plan to install another ventilation fan in master bath, but I'm considering another option due to this issue. Although it is a minor issue, the inconvenience may be too much for the average homeowner.

it works

Decided on this unit to replace old Broan fan in bathroom. Great decision on my part. The fan was easily installed and so quiet its almost hard to hear. I highly recommend this product.

Tho it is a little expensive it seems to move a fair amount of air and it is super quiet , I had to look with the cover off to make sure that it was running . The install was straight forward , the build quality was adequate. There are sharp edges on the sheet metal so be warned and wear gloves while maneuvering into place . The instructions could use better description as to what wire to use if you are not using the humidity sensor or timer , Very confusing .

My kids would either forget to turn the fan off or not turn it on. The sensor and timer work great. Easy to hook up