7.2. Fan cleaning
The GT7.3x27 has two fans with fan filters at the bottom of the housing to assist with cooling the terminal. To maintain reliable operation, the fan filters must be cleaned at regular intervals.
Remove the housing rear part (see Opening / closing the housing).
Using a damp (not wet!) cloth, clean the top of the two fans (1) to remove any dust. A vacuum cleaner with a narrow attachment can also be used to carefully remove dust.
Clean underneath the fans (2) on the housing middle part.
Notice
Take care not to damage the internal electrical components during cleaning. Contact your local Gantner office If assistance from a service technician is required.