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Pros & Cons
Pros
Amp fan speed control for bathroom extraction / exhaust fans. Cables connect directly to the blower. Can reduce 70 watt fan to 50 watts.
It works perfectly out of the box. No hum. No fuss. Great service from amazon.
Overall the components, assembly and soldering are of very good quality. Easy to wire, works as advertised, no rf interference or humming. Two wire connectors and two screws.
Magic heat uses a simple (on/off) thermostat controlled 1/200 hp single speed shaded pole fan motor.
Kbwc-13k potentiometers are configured as two-terminal components. This means i can easily replace the trimmer potentiometer with a two terminal negative temperature coefficient (ntc) thermistor.
Cons
This is a cheap switch which is manufactured in hong kong. Without the controller the fan is smooth and quiet but with the controller it runs noisy.
Highlights
Quality
Overall i am very pleased with the constructionquality of this product
The controller stays cool with the large cooling fins on the back
This can be observed if you dial the speed of a motor down to a very slow steady rpm and then disconnect the power to the circu... Read More
While the shaded pole fan was performing very well with the controller from minimum to maximum speed measurements showed the fa... Read More
Price
Keep in mind that these are low cost simplistic controllers the performance can vary significantly from one installation to another
Shipping
Needed to adjust fan speed on a modine heater in a garage it works great fast shipping and easy to install
Sellers that adjust the builtin shipping costs according to the weight of your purchase may save you some money for multiple units
Competitiveness
The replacement fan motor for my 30 year old nutone range hood was slightly larger than the original and had far more capacity than needed
Overview
- How are reviewers describing this item?
motor, low, great, easy and full. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has determined that the review content quality is high and informative.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 1,109 reviews as of our last analysis date on Nov 18 2022.
Helpful InsightsBETA
Posted by a reviewer on Amazon
I needed to adjust the minimum set level just ever so slightly
Posted by a reviewer on Amazon
Just a simple fan speed control
Posted by a reviewer on Amazon
I purchased this controller with intent of modifying it so the fan of my magic heat unit would run slower and be less noisy when the woodstove fire was producing less heat
Posted by a reviewer on Amazon
So my next step after receiving the kbwc13k was to disassemble it to see what i was working with
Posted by a reviewer on Amazon
The circuit triggers on whichever potentiometer is set to a lower resistance
Posted by a reviewer on Amazon
So if the trimmer is set so the motor has a high minimum speed then theres very little usable speed adjustment range from the control knob and vice versa
Posted by a reviewer on Amazon
This can be observed if you dial the speed of a motor down to a very slow steady rpm and then disconnect the power to the circuit as happens with the thermostat switch of the magic heat
Posted by a reviewer on Amazon
When power is reapplied the fan may struggle to start if it does at all
Review Count History
Price History
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