ADG400 User Manual
Michell Instruments
21
MAINTENANCE
4.3
General Troubleshooting
Symptom
Action
Power switches on, but the screen is
off/dim
The screensaver is running – touch the
screen.
Saturators not bubbling
Water spread between water trap and
saturators
Run the saturator filling procedure to equalize
the pressure in the saturators.
Output is too dry
Check the water level.
Check the saturators as above.
Enclosure does not heat to
35 °C set point
Check the fan is spinning
Check the heater fuse; if blown, a heater
element may have failed – measure the
resistance of each heater element and contact
Michell support.
Fan does not spin but unit otherwise OK Contact Michell support for a replacement fan.
On HMI, only
?
status menu is available;
all other functions are unavailable
Contact Michell support.
PLC BAT indicator is RED on the status
screen
Contact Michell support for battery
replacement instructions.
