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8.0 Troubleshooting Guide
NOTE: Refer to the P&I-schematic diagram and Dimensional Drawings for components specified in parentheses (e.g. B006).
WARNING – A POTENTIAL ELECTRICAL SHOCK HAZARD EXISTS. Some of the troubleshooting checks may require gain-
ing access to the dryer’s electrical enclosure while the power supply is energized and should be performed by a
qualified electrical technician
WARNING – Before performing any electrical or mechanical repairs or maintenance, or removing or disassembling
any component, be sure to de-energize and depressurize the dryer
Water in the compressed-air system
Possible Cause Remedy
Condensate residues which formed prior to
starting up the dryer are in the compressed-
air system
Blow out compressed-air system with dry air until no more moisture is con-
densed out. Open collection point at most remote position, if possible.
Bypass open. Close bypass.
Condensate from the prefilter not separated. Carry out check by trained staff and repair, if necessary.
The operating parameters have changed
since the desiccant dryer was installed.
Correct to the original operating parameters as the dryer was designed.
High pressure loss through the desiccant compressed air dryer
Possible Cause Remedy
The capacity of the pre and/or -after filter
cartridge are overload.
Replace the filter cartridge (see annex filter).
The operating parameters have changed
since the desiccant dryer was installed.
Restore the operating conditions for which the dryer was designed.
Display: 310
(LED Warning/ Service/ Alarm glows yellow)
(Service time expired, leads to deactivation of the relay warning / service)
Possible Cause Remedy
Service time expired Carry out maintenance and reset service counter.
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