For more information please visit our website at

You should have already determined the correct Evaporator Coil Sensor location.

Now, letís review the proper way to physically install the sensor into the coil.

When installing the coil sensor, it is essential to make sure it has good contact with the coil surface.

To do this you must correctly insert the sensor, to accurately measure the coil temperature.

An important factor in this is the construction of the sensor itself. Despite its physical size, the sensing element is actually quite small.

The majority of the housing is there to protect the sensor from the harsh refrigeration environment.

It also provides a physical size that is easier to handle and install.

The last third of the sensor is the most sensitive, and must be placed in the proper position.

When installing the sensor on an evaporator with 4 to 6 fins per inch, the fins themselves should be sufficient to hold the sensor in place.

On installations with wider fin spacing, a coil sensor clip should be used.

There are 2 methods that can be used to install the sensor.
The first is to insert the sensor into the coil at a 45-degree angle.

When inserting the coil sensor into the coil it should be angled upward, with the cable hanging downward.

This allows moisture to drain away from the sensor.

Next, the sensor should be as close to a refrigerant tube as you can, without causing damage.

Once the sensor is installed, pinch the fins around the sensor cable.

The second method of installing the coil sensor is in a vertical position.

As the defrost termination sensor, it is important to make sure the sensor doesnít terminate defrost before all frost is removed from the coil.

In some installations, inserting the sensor into the coil positions it too close to the defrost heat source.

Using this second method of positioning the sensor places it vertically between the coil fins.

This position places the sensor on the face of the evaporator coil. Which works well on Air and Hot Gas, as well as some electric defrost, applications

One more thing to consider, is that many of our controller kits are supplied with different color sensors.

This will help keep wiring clear, and help you standardize installs across locations.

Although all of the sensors are the same, if you have a kit with color sensors, we recommend using the yellow and green for the coil sensors and the blue for the air.

Subscribe to Channel:

This video by KE2Therm was liked: 68 times

If you like this video by KE2Therm, please support their CHANNEL by clicking on the SOURCE link below and Subscribe.



Featuring Your Videos:

By featuring your videos on our blog, your videos will receive hundreds of views daily from our website visitors, you get a backlink to your channel for followers to subscribe to your channel. This is a win/win for SEO for both of us. If you would like your videos or channel highlighted and premiered on our blog for FREE, please contact us.

However, if you no longer want us to premier your channel, and want us to remove your video and not feature your channel anymore, please contact us.

Video Post Disclaimer:

The information contained in the multimedia content (“Video Content”) or post content in general, represents the views and opinions of the original creators of such Video Content or post, and does not necessarily represent the views or opinions of The mere appearance of Video Content or the post on the Site does not constitute an endorsement by or its affiliates of such Video or Post Content. 

The Video Content or Post has been made available for informational and educational purposes only. does not make any representation or warranties with respect to the accuracy, applicability, fitness, or completeness of the Video or Post Content. does not warrant the performance, effectiveness or applicability of any sites listed or linked to in any Video Content or Post.

Affiliate Disclosure:

This post and description may also contain some affiliate links, which means that the post creator may receive a small commission at no extra cost to you if you click on some of the product links and decide to make a purchase. This channel is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to

Copyright Issue:

If you find any of your copyrighted material in this post or video, please contact us, so we can resolve the issue.

All rights reserved by respective owners.

Leave a Reply

Your email address will not be published. Required fields are marked *