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11. TROUBLESHOOTING
1. Insufficient inlet pressure
2. Electrical Fault
3. Moist or contaminated desiccant
4. Too high air consumption
5. Excessive inlet air temperature
6. Insufficient purge air
7. Exhaust silencer blocked
1. Inlet pressure min 4 barg. If not adjust inlet pressure
settings.
2. Ensure the power is on and the dryer front panel is
illuminated; check the dryer is cycling correctly.
3. Eliminate the cause of contamination. Replace cartridges
– do not re-use.
4. Ensure the performance of the dryer matches the required
system air consumption.
5. Check against technical specification.
6. Purge incorrectly adjusted. Consult service personnel to
adjust settings (Factory pre-set).
7. Consult service personnel.
Poor dew point
performance
Problem Caused
Problem
Solution
8. Controller not functioning correctly
9. Controller not illuminated
10. Insufficient inlet pressure
11. Failure to de-pressurise when
cycling
12. Outlet flow stops
8. Ensure the controller is powered; check the on screen
column status to ensure it is powering the solenoid valves
during normal cyclic operation.
9. Check power to unit & fuse: T2A 250V (located at Fig 8.A).
10. Inlet pressure = min 4 barg. If not adjust inlet pressure
settings.
11. Solenoid valve not functioning correctly; if there is power
to the coil, replace valve. A correctly working valve outputs an
audible click when it energises.
12. Check inlet air supply.
Failure of dryer to
cycle
13. Failure to initialise dryer
14. Erratic air flow from exhaust
13. Switch off and restart dryer. Ensure dryer is pressurised
before powering dryer to allow dryer to initialise before
commencing operation.
14. Faulty or damaged valve; service required.
Constant
depressurisation
REFERENCE TO KNOWN ISSUE
Opening the inlet valve too quickly - Valve should be opened slowly allowing the pressure to build up gradually.
Inlet/outlet head pipe - Diameter too small.
Pipe work unsupported.
Inlet pipe work from low point in system, allowing bulk water to collect and enter the dryer.
Electrical controller
- Incorrect fuse fitted or fuse blown. Check the plug and fuse located on bottom of the controller back plate inside
the dryer front door.
Additional Items
- Use of non-authorised components.
- Untrained / unauthorised maintenance / installation personnel used.
- Increase in air consumption without relation to the flow capacity of the dryer.
- Purging the dryer with cleaning agents that could damage the components or the desiccant.
- Covers removed or loose during operation.
- Failure to carry out a service when indicated by the dryer.
- Do not allow the dryer to flow air unless powered up, switched on and cycling. Resulting effect could be
dessicant contamination; requiring replacement dessicant.
