Troubleshooter
December 09, 2025
More About Troubleshooter
Troubleshooter helps you diagnose and resolve many issues that pop up in HVACR systems. Through a streamlined and easy-to-navigate interface, you can check on specific parts of a system and search through the most common symptoms. Once you’ve identified the problem, Troubleshooter recommends possible solutions for you to try.
Troubleshooter is a valuable, time-saving app for installers and service technicians, enabling you to quickly resolve service calls and move on to the next one.
You can also download Troubleshooter’s database, so you can use it with or without an internet connection—which is great for remote service destinations.
How to use
When you start up Troubleshooter, you’ll see a refrigeration system divided into four main areas: low pressure, high pressure, compressor, and liquid line components. Select one of the four areas and you will be able to search through potential symptoms for that area in the system. Once you identify the correct symptom, Troubleshooter will show you the possible causes for that symptom and the steps required to correct it. It’s easy to move back and forth between the symptom/cause and the solution pages.
Support
For app support, please use the in-app feedback function found in the app settings or send an email to coolapp@danfoss.com
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 www.danfoss.com.
Terms and Conditions apply for use of the app.
Latest Version
5.8.0
December 09, 2025
Danfoss A/S
Tools
Android
396,832
Free
com.danfoss.troubleshooterapp
Report a Problem
User Reviews
Jayke Sapalaran
3 years ago
Please make Tutorial App for HVAC VLT DRIVE 120
Wholesale Trade Delhi (Freelancer Naveen Shukla)
2 years ago
Fake empty app
Emmanuel Edubio
3 years ago
This app helps up coming hvac tech
Byron Savory
1 year ago
Easy to use
Mon Noon
5 years ago
Thanks for creating this app.
A Google user
6 years ago
They are very helpful
Dana Molinaro
2 years ago
Can’t download the app? How to?
simphiwe mbele
3 years ago
It does everything Simple For us as a whole world Thanks
Ronald Byers
4 years ago
No help and no fix but wants a commlement the thing is your fierd
ali vahid
3 years ago
great app its work to me and help me alot please add persian to this app❤
Jay Fearrington
3 years ago
I have been in the HVAC/R business for over 40 years. All of the new guys coming in I tell them to down load this app. Very helpful and easy to understand.
liff louie ramos
5 years ago
Good app for trouble shoot and memorization app
Amirhamza Khan
4 years ago
Best application for Air conditioner and problems solver
A Google user
6 years ago
Good app for air conditioning only. Any similar app for refrigeration
Raquel Esponilla
5 years ago
This app is so good. I think i can do fix any problem of a cooling systym. ThankYOu for this beautiful and usefull app.
A Google user
6 years ago
Superb app. The answers help in correct diagnosis. Useful for professionals and new comers.
Dexenation Gracey
4 years ago
Seems like a fine app but all the units I'm working on are pistons and there's only an option for TXV.
Kieran Craddock
5 years ago
If you are an apprentice then this could be a valuable tool. For the more seasoned engineer it gives you the basic solutions that you should have already looked at in my opinion but good for learning
Wael Faraj
3 years ago
Excelente apps, maybe you need to consider adding Hebrew and arabic to this app, As a student of practical engineering, it will be nice that all the information like videos or apps, be also with translation to Hebrew and arabic. Cause 80%of our student dont know English.
T Mst
5 years ago
Appears to be a neat little static app that might help in some situations. Breadcrumbs would dramatically improve the user experience with easier navigation, IMO. Text search might also be handy.
