Comprag ADX-F-50 [18/56] Fault handling

Comprag ADX-F-40 [18/56] Fault handling
18
Version 1.0
Ensure that the towers are not under pressure and disconnect the dryer from the
system.
• Unscrew the bleed plug.
• Fully remove the adsorbent from the towers.
• Screw on the bleed plug.
• Unscrew the lling plug.
• Fill both towers with original adsorbent, as per table 2.1
• Screw on the lling plug.
• Carry out the start-up procedure as for the rst start-up, as per point 4.2.
6. Fault handling
6.1 Possible faults
Fault Possible cause Solution
The air dryer
will not start.
There is no electrical voltage.
The voltage of the power supply line, the state of
fuses and the main switch should be inspected.
Failure of electronic circuit board. Replace the electronic circuit board.
Purge air
doesn’t exit.
Failure of solenoid valve.
Check for signals being output to solenoid valves.
Replace, if necessary.
Failure of electronic circuit board. Replace the electronic circuit board.
Injector / silencer blocked.
Remove injector / silencer.
Purge with compressed air. Replace, if necessary.
Air ows out
in very small
amounts.
Injector / silencer blocked.
Remove injector / silencer. Clean away dirt / oil
/ dust.
There is no
change in the
tower cycles.
Check the functioning of the sole-
noid valves.
Check for signals being output to solenoid valves.
Replace, if necessary.
There is no electrical voltage.
The voltage of the power supply line, the state of
fuses and the main switch should be inspected.
Failure of electronic circuit board. Replace the electronic circuit board.
Mechanical problem in the intake
valve.
Remove the intake valve and check the free play
of the bypass washer.

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