Download of RiDiag 3.4 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program is a product of Rittal. The most popular versions of the RiDiag 3.4, 2.8 and 2.7.
This free PC software was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10 or Windows 11 and is compatible with 32-bit systems. RiDiag belongs to System Utilities. The program's installer is commonly called RIDIAG.EXE or Rittal.RiDiag.GUI.exe etc. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
RiDiag is a diagnostic, maintenance and long-term data logging program for the Comfort range of cooling units. Every diagnosis check can be saved to provide documentation of the operating response. All setting parameters such as enclosure internal temperature, sensitivity of filter mat monitoring etc. may be edited and saved via RiDiag.
You may want to check out more software, such as Roxio Media Manager or MyGPS, which might be similar to RiDiag.