a D:GROUP company
00020EN Rev.09 – 12/2012 25
8 TROUBLESHOOTING PROBABLE CAUSES OF MALFUNCTIONS
PROBLEM CAUSE REMEDY
Cabinet does not work – the electricity supply has
been cut off at the mains
– Electronic board out of order
– Blown fuse(s)
– check the voltage input to the
cabinet
– Replace PCB
– Replace fuses
Alarm: “HEPA filters check” Main HEPA filter clogged Replace HEPA filter
HEPA filters clogged . Replace HEPA filters. “minimum LAF alarm”.
[Possible contamination of the
product but protection of the
environment]
The main motor-fan does not work
Check the terminal voltage of the
power card of the main motor-fan
Check F7 fuse on the power card
Replace the power card
Replace the microprocessor card
“Black-out ” Alarm
(probable exchange of air between
the work chamber and the outside
and possible contamination of the
environment)
Blackout
Check the feeding cable, the
connection plug/socket, the power
supply line
Press “ESC” [7] key to silence the
alarm
Alarm “Sensors failure” Failure of sensor XX Replace XX sensor.
Alarm: “No encoder input LAF” No signal from LAF flow sensor Replace the LAF sensor
To Next Page
Loading...