# Mobile Technician > Fujitsu General AC and air-to-water system troubleshooting and diagnostic tool. (iPhone/iPad app by GENERAL Inc..) - Source: https://appshunter.io/ios/app/mobile-technician/id719359225 (this page in markdown: same URL + `.md`) - Developer: [GENERAL Inc.](https://appshunter.io/developer/604826467) - Category: Utilities - Price: Free - Rating: 2.90/5 from 30 App Store ratings · 36 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 55 MB - Languages: American English, French (France), German (Germany), Greek, Italian, Polish, European Portuguese, Russian, Chinese (Simplified, China), European Spanish and 2 more - Released: 2013-10-10 - Data updated: 2026-08-23 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/mobile-technician/id719359225/reviews.md ## What is Mobile Technician? This application is a troubleshooting tool for FUJITSU GENERAL Air Conditioners (RAC/PAC, VRF) * , Wireless LAN Adaptor and Air To Water. It helps you to check air conditioner condition. Error code check, troubleshooting and sensors check are available. *: Applicable to RAC/PAC models with new serial communication method(4th digit of model code is "G" or "H" for example AS*"G"--, or AU*"H"--). Models with old serial communication method are not applicable(some models support). For VRF, models V-II, J-II or later are applicable. ## Key features - Troubleshooting tool - Air conditioner condition check - Error code check - Sensor data inspection - Wireless LAN adaptor support - Air to Water system support ## Recent user reviews (10 of 36) All indexed reviews: https://appshunter.io/ios/app/mobile-technician/id719359225/reviews.md ### 1/5 — Should be removed from App Store *2026-05-16, version 2.3.0* Absolute rubbish for a leading supplier of split system A/C units, obviously they don’t take it seriously. ### 1/5 — Update *2025-09-30, version 2.3.0* 24 hrs later still waiting for updates to complete…..not what I would call helpful. ### 1/5 — Zero stars *2025-09-16, version 2.3.0* I’ve had the app for a couple of years. It’s worked for me from time to time, but 90 percent of the time it’s a waste of time. It’s easier to go to google and put the error code in to get answers. ### 1/5 — Endless download *2025-08-18, version 2.3.0* I gave up since others had the same problem and I’m not even sure it covers my mini splits. ### 1/5 — Garbage. *2025-06-11, version 2.3.0* All night updating. Deleting app. ### 1/5 — Too many systems missing *2025-06-11, version 2.3.0* I’ve only had one or two occasions where the system I’m diagnosing is on the app and countless times where it has 0 results. ### 1/5 — Worst App Ever *2025-05-18, version 2.3.0* Download if you wish to waste time and data ### 1/5 — Dysfunctional app *2025-04-15, version 2.3.0* This app takes hours to download all unnecessary stuff and finally does not work. Who in this world devised such a useless app. If there is an award for worst app, this one would be the winner ### 2/5 — Not the units *2025-01-09, version 2.3.0* Never has the units I need when needed. ### 2/5 — Never ending update . when does it end ? *2024-12-07, version 2.3.0* It would be nice to see an progress bar through the whole updating process Update keeps failing tried to reinstall app Same issue stuck updating and never ending buffering wheel ## Frequently asked questions about Mobile Technician ### What does the Mobile Technician app do? This application serves as a troubleshooting tool for FUJITSU GENERAL Air Conditioners (RAC/PAC, VRF), Wireless LAN Adaptors, and Air To Water systems. It enables users to check the condition of air conditioners, perform error code checks, and inspect sensor data. ### What types of Fujitsu General systems are compatible with this app? The app is applicable to RAC/PAC models with a new serial communication method (e.g., 4th digit of model code is 'G' or 'H'). For VRF systems, models V-II, J-II, or later are applicable. Models with older serial communication methods may not be supported. ### Is this app free to use? Yes, based on the provided information, this application is available for free. There are no mentions of in-app purchases or advertisements, suggesting a completely free user experience. ### What are the main features of the Mobile Technician app? Key features include checking air conditioner conditions, diagnosing error codes, and inspecting sensor data for various Fujitsu General systems. It also supports troubleshooting for Wireless LAN Adaptors and Air To Water systems. ### Who would benefit from using this app? This app is designed for technicians and individuals who are responsible for the maintenance and repair of Fujitsu General air conditioning units, VRF systems, wireless LAN adapters, and air-to-water heat pumps. It provides essential diagnostic capabilities. ## Version history (last 5 releases) ### 2.3.0 — 2022-05-19 Technical video function added and minor improvements. ### 2.2.0 — 2021-04-23 Minor improvements and fixes. ### 2.1.3 — 2019-01-21 Bug fixed. ### 2.1.2 — 2018-12-06 -Correction of regulation notation (R32 Calculation of allowable refrigerant capacity) -Bug fixed. ### 2.1.1 — 2018-10-17 Bug fixes ## Apps similar to Mobile Technician | App | Rating | Price | Category | | --- | --- | --- | --- | | [LGMV-Business](https://appshunter.io/ios/app/lgmv-business/id1506724643) | 2.1 (25) | Free | Utilities | | [Carrier® Service Technician](https://appshunter.io/ios/app/carrier-service-technician/id1123086541) | 4.1 (108) | Free | Utilities | | [Ruud](https://appshunter.io/ios/app/ruud/id1608918835) | 4.6 (990) | Free | Utilities | | [Fujitsu - Infinite Comfort Pro](https://appshunter.io/ios/app/fujitsu-infinite-comfort-pro/id1337982168) | 3.5 (17) | Free | Utilities | | [Rain Bird](https://appshunter.io/ios/app/rain-bird/id1060727082) | 4.7 (69,859) | Free | Utilities | | [Aranet Home](https://appshunter.io/ios/app/aranet-home/id1392378465) | 4.8 (578) | Free | Utilities | ## More apps by GENERAL Inc. - [FGLair](https://appshunter.io/ios/app/fglair/id1097145126) - [AIRSTAGE Mobile](https://appshunter.io/ios/app/airstage-mobile/id1604379258) - [AIRSTAGE Remo Set](https://appshunter.io/ios/app/airstage-remo-set/id1619915235) - [AIRSTAGE Service Monitor Tool](https://appshunter.io/ios/app/airstage-service-monitor-tool/id6736682346) - [Mobile Technician Pro](https://appshunter.io/ios/app/mobile-technician-pro/id6780386407) All apps by GENERAL Inc.: https://appshunter.io/developer/604826467 ## Related topics [fujitsu mobile technician](https://appshunter.io/ios/topics/fujitsu-mobile-technician) · [mobile technician](https://appshunter.io/ios/topics/mobile-technician) · [micromain mobile technician](https://appshunter.io/ios/topics/micromain-mobile-technician) · [fujitsu airstage](https://appshunter.io/ios/topics/fujitsu-airstage) · [avvacare](https://appshunter.io/ios/topics/avvacare) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*