Condition Fault Remedy
Inlet pressure drops
every cycle.
Shuttle O-ring damaged.
If the shuttle does not seal, there will
be a leak path between inlet air and
exhaust. Open the valve block and
inspect the shuttle O-ring. Replace
O-ring if needed.
Low outlet pressure.
Blocked filter. Check/replace filter elements.
Blocked filter desiccant cartridge. Check/replace desiccant cartridge.
Excessive purge air flow. See excessive purge air flow.
Dryer won't
pressurize.
Incorrect start-up.
Keep downstream isolation valve
closed. Open upstream valve slowly.
Power the dryer once pressurized.
Package won't
electrically energize.
Faulty wiring to controller. Check electrical wiring.
Wrong supply. Check the voltage supply.
Power LED does not illuminate. Replace controller.
Instruction book
76 2920 7219 10
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