Frequently Asked Questions

What's the difference between AC diagnosis and a thermometer?


AC Diagnosis is an innovative Internet of Things (IoT) sensor at the forefront of diagnostic technology. It attaches to your car's central vent and allows users to determine whether their car is cooling efficiently. The diagnostic tool takes into account all outside weather conditions, temperature and humidity, calculates the optimal vent temperature, and communicates if the air conditioning is working properly (or not). Thermometers (which have been around since 1714) only measure the overall temperature of your car's central vent, which can lead to an inaccurate reading causing unnecessary work and expenditure. This happens because warm air can blow through your AC when the outside temperature is hot and impact the performance of your air conditioning, even if your car's air conditioning system is in perfect working order. If you are wondering why it’s so important to take into account the outside temperature and humidity when you test your A/C performance, read here: https://www.acdiagnosis.com/post/how-temperature-and-humidity-affect-car-ac-performance




How does AC diagnosis work?


AC Diagnosis is an innovative Internet of Things (IoT) sensor at the forefront of diagnostic technology. It attaches to your car's central vent and allows users to determine whether their car is cooling efficiently. The diagnostic tool takes into account all outside weather conditions, temperature and humidity, calculates the optimal vent temperature, and communicates if the air conditioning is working properly (or not). Visit our website to learn more: https://www.acdiagnosis.com/air-conditioning-diagnostic-tool




The phone doesn't find the AC diagnosis sensor


If the sensor doesn't show up please check the GPS/Location setting on your phone. The GPS/Location on your phone MUST be ON to connect the AC diagnosis sensor. If the GPS/Location is on and the sensor still doesn't show up please check the battery.




What's so great about AC diagnosis?


AC diagnosis gives back control to every car owner. Modern cars have become quite complex and they contain more technology than ever. If you are testing your car’s air conditioning performance without taking the outside weather conditions into account, it can be easy to misread the real A/C performance of your system. One of two things could happen:

  1. You might take your car to a mechanic and pay for a professional service even though it still works properly.
  2. The A/C system is not working as efficiently as it could but you don’t know that, which also means you are losing money at the pump because you are filling up more often.
The AC diagnosis sensor takes into account all outside weather conditions, calculates the optimal vent temperature, and communicates if the air conditioning is working properly (or not). It does all of this in just a few minutes. This way you gain more transparency and control over your car, enabling you to save money and time, and giving you peace of mind. To learn more about how why it's so important to take into account the outside environment when we test A/C performance read here: https://www.acdiagnosis.com/post/how-temperature-and-humidity-affect-car-ac-performance




Can I test the car’s AC with the new refrigerant R-1234yf?


Yes, you can test the car’s air conditioner that uses refrigerant R-1234yf. Go to “Settings” on the AC diagnosis app and select the type of A/C system you want to test the performance.




What car's AC system is compatible with AC diagnosis?


AC diagnosis works with all types of AC systems and vents and it is compatible with 2 types of refrigerant, R-1234yf and R-134a. All new cars coming off the assembly line today have R-1234yf refrigerant running through their air conditioning system. However, there are several models that still use R-134a. If you are wondering what refrigerant is used in your car, please read here: https://www.acdiagnosis.com/how-to-know-refrigerant-used




Where can I buy the AC diagnosis Smart Performance Sensor?


AC diagnosis is available on our website https://www.acdiagnosis.com/




Where I can download the AC diagnosis app?


AC diagnosis mobile app is available for iOS and Android devices on the App Store and Google Play. Visit: www.acdiagnosis.com/getting-started, download the app, and get started on keeping your air conditioning working efficiently.




Can I save and track the data of my test?


Yes, you can save the record any time you test your Air Conditioning. AC diagnosis app allows you to track: diagnosis result, temperature, humidity, air conditioning or car model, and add a note.




Can I edit the record I saved?


Yes, you can edit the saved records.




How long does the AC diagnosis battery last?


AC diagnosis is power by a CR2031 battery. The battery can be replaced when it’s over. If the battery is charged AC diagnosis sensor can work up to 5 years. The battery duration for the sensor varies depending on how often it is used. The mobile app provides the battery level.




How to setting up AC diagnosis for the first time?


This video shows how to set up AC diagnosis for the first time:




How to make a Digital Check of the Car Air Conditioner with AC diagnosis.


In this video, the founder of AC diagnosis, Marco Bonifaccino, explains how to diagnose the car air conditioner issue with AC diagnosis Smart sensor.




Unboxing AC diagnosis


This video shows how to get started with AC diagnosis Snart Performance Sensor.




Can I use the tablet instead of my phone?


Yes, you can use the tablet. Download the AC diagnosis app on your tablet and login with the same email you use on your smartphone. All the setting, include the test results, will be keep into your account.




I can't read the diagnosis. Why numbers and text are so big on my phone?


Please, check your phone setting. When texts and numbers are very big on your phone, you might have set up a larger "display size". To read perfectly the diagnosis information the display size should be set up as "default". Follow the instuction below to change the setting on your phone: - Androis smartphone: Font size & display size - iOS smartphone: Change the font size on your iPhone, iPad, and iPod touch





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