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Pros & Cons
Pros
The speed rheostat works perfectly and replaced a 22-year old controller that just quit working one day. Used to vary the speed of a fireplace fan. Used this to control a 6amp whole house fan.
Overall, pleased with the purchase. Works like a charm! No issues at all - works as advertised.
The exterior plate of the switch juts out from the wall about 7/8 (seven eighths of an inch) the switch works exactly as described. Has an insulated plate that cannot be removed. Attached this with a magnetic heat sensor in line and works perfectly.
Cons
I'm not sure if i received a defective unit.
Highlights
Quality
It was not a big problem and i was expecting that to be the case based on other comments on the product
Based on build quality and tech support experience i have to give this product five stars
Id give it three stars if it was based on my overall happiness with the device but one cannot change the laws of physics
Competitiveness
I installed this along with a maxxair if18 exhaust fan
Using it to control a broan 900 cfm ventilation fan
Overview
- How are reviewers describing this item?
great, motor, good, full and whole. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 205 reviews as of our last analysis date on May 27 2023.
Helpful InsightsBETA
Posted by a reviewer on Amazon
It made the fan run with a very loud whining noise
Posted by a reviewer on Amazon
Tech support for kb electronics was knowledgeable but could not determine why the noise was present
Posted by a reviewer on Amazon
After a reasonable amount of searching and reading i learned that most triac based speed controls cause motors to whine
Posted by a reviewer on Amazon
The reason is physics based and i am not an engineer so i only understood on a very rudimentary level
Posted by a reviewer on Amazon
According to the article i found it is shown that the oddtime harmonic voltages introduced by the controller produce pulsating torques at all even multiples of the supply frequency and that the extra noise components occur at these frequencies
Posted by a reviewer on Amazon
Anyway long story short this device will possibly make your motor emit a whining sound
Posted by a reviewer on Amazon
Aggravating but that is the nature of this device
Posted by a reviewer on Amazon
I cant fault the manufacturer or the device any stars for being inherently noisy
Review Count History
Price History
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