Magnetic Tool – Ensuring that a solenoid valve coil is working properly

[App] Magnetic Tool

Magnetic Tool  Magnetic Tool is now part of the new Ref Tools app, our essential, all-in-one mobile app for air conditioning and refrigeration technicians.

Ref Tools gives you access to the tools, guidance, support, and information you need—on the job and in the field.

Download Ref Tools to access the latest version of Magnetic Tool.

Ensuring that a solenoid valve coil is working properly, or detecting a faulty one, is an important step in many repair or installation projects. Magnetic Tool makes testing a solenoid valve coil quick and easy. Just open the app, hold your smartphone up to the solenoid coil you want to test, and watch for the wheel in the app to start spinning. If it rotates, your solenoid valve is good to go.

If a solenoid valve is in a tough-to-reach space, you can also set Magnetic Tool to provide audio or haptic (or both) feedback when it detects a magnetic field. That way, you can check on a valve without seeing your screen, so you can maneuver your phone any way you need to.

Magnetic Tool has two modes: Simple and Advanced. With Simple mode, all you need to do is open the app and start testing—it’s that simple. Advanced mode allows you to adjust the threshold tolerances of the magnetometer, which is most often used to reduce or eliminate interference from other nearby solenoid valves.

Magnetic Tool is part of the Danfoss CoolApps Toolbox, a collection of mobile apps designed to help installers and service technicians with their daily tasks. See the full collection at

For app support, please use the in-app feedback function found in the app settings or send an email to

Engineering Tomorrow
Danfoss engineers advanced technologies that enable us to build a better, smarter and more efficient tomorrow. In the world’s growing cities, we ensure the supply of fresh food and optimal comfort in our homes and offices, while meeting the need for energy-efficient infrastructure, connected systems and integrated renewable energy. Our solutions are used in such areas as refrigeration, air conditioning, heating, motor control and mobile machinery. Our innovative engineering dates back to 1933 and today, Danfoss holds market-leading positions, employing 28,000 people and serving customers in more than 100 countries. We are privately held by the founding family. Read more about us at

Terms and Conditions apply for use of the app.

Magnetic Tool user reviews :

This is a must have tool for any one doing service involving a Soloniod Control Valve controlled by a Magnetic Soloniod , it is just one of the great apps provided by Danfoss and there well qualified technicians. Check out the other app available. Easy to use and on point everytime thanks for making these available and free of charge

It shows emf no doubt but turning of circle DOES NOT indicate that pump is actually turning/running or direction of pump. This means one has to use other ways yo check the pump.
  • Danfoss A/S
  • Hi Safdar! Thanks for reaching out. You are correct – the app only tells you that the pump is turning/running. We do unfortunetly not have the option to show the direction of the pump.
Bloody hell! I never thought that I don’t have to use a conventional solenoid valve tester anymore. It makes my commissioning life easier. I don’t have to peek on the display to check if my solenoid is energized. Just hearing the sound and vibration is enough! Thank you very much Danfoss!!!
  • Danfoss A/S
  • Hello Stan, We are happy to hear that we are able to help you out! That is exactly why we created the tool. Thank you for taking the time to rate the app. If you have any other feedback or if you have any good ideas on how we might improve the app please let us know either here or by mail to coolapp[at]
Yeah sorry would love to have been able to write something up beat and positive… but it’s just a really bad app….why doesn’t Google play test the apps that are in the play store…on a positive note, no loud annoying ads…. that’s why I havegiven it 1 star….
  • Danfoss A/S
  • Hello Andy, If you still experience issues with the app, i kindly ask you to reach out to us. We want to help you and are very interested in hearing your feedback. Please let us know how you would want us to improve the app, so that we can improve your experience as well.
I just tried the Magnetic Tool and It did actually work! For those of you who say it doesn’t work may I suggest that you take the case off and try. You have to be almost on the valve for it to work at least for me. Neat little gadget. Thanks Danfoss!
  • Danfoss A/S
  • Hi Marko, Thank you so much for your feedback. It is nice to see that you like the app! Thank you for the neat little trick for our other users. Please do not hesitate to get back to us with any suggestions for improvements, as we strive to improve the app every day.
Worked like a charm. Tested this app 2 times to see and used it when diagnosing a system very nice easy to use app.
  • Danfoss A/S
  • Hi Keith, Thank you so much for your feedback. It is nice that you like the look of the app. Please do not hesitate to get back in touch with us if you have any suggestions for improvement.

Contact developer :


Video :

Download Magnetic Tool from Play Store

Leave your feedback regarding Magnetic Tool

If you like the content that we provide since 2012, put a smile on our face and give us a like or share this with your friends on any social platform. If you want to support this project, any crypto donation is welcome!
You can find our crypto wallets on

Sponsored Links

Leave a Reply

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.