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Installation and operating manual
9.2. FAQ
Error or fault pattern
Poor degree of drying
Purge air outlet is always
open ("fail-safe")
Purge air outlet constantly
closed (measuring gas flow
only)
54
Possible causes
Temporary overload
Incorrect dimensioning
Aerosol ingress
Purge air flow blocked internally
Sensor is too old
Incorrect operating mode selected
Coating formation on the sensor caused by
low quality of the flowing in air
Continuous overload
Fail-safe mode active
Incorrect installation direction
Software error
Sensor defective
Power failure (power LED off)
Power control board defective
Device overheating
Piston seal defect
Measuring gas jet is blocked
Solenoid coil burnt through
Incorrectly dimensioned unit
Sensor defective
Remedy
Improve the operating conditions e.g.
increased working pressure, prevent sudden
load changes
Implement larger dryer
Inspect filter element function and, where
applicable, exchange it or introduce an
additional preliminary filter; inspect
condensate drain-off function and replace it
if necessary
Contact manufacturer: If necessary, return
device for repair
Contact manufacturer: If necessary, return
device for repair and/or replace control unit
Amend the operating mode
•
Improve compressed air quality on
membrane dryer inlet
•
Adhere to the filter element
maintenance interval and replace the
element regularly
•
Exchange control unit
•
Return the device to the manufacturer
for repair
Improve operating conditions e.g. increase
working pressure, avoid sudden load
changes; check dryer dimensions; use larger
unit
Inspect error and fault messages: The
flashing rate of the red LED indicates the
type of the fault; if necessary, contact
manufacturer
Inspect installation direction of device
Contact manufacturer: If necessary, return
device for repair and/or replace control unit
Contact manufacturer: If necessary, return
device for repair and/or replace control unit
Reconnect to the voltage supply
Contact manufacturer: If necessary, return
device for repair and/or replace control unit
The device automatically resumes
its operating state when the internal
temperature has dropped < 60°C
Replace set of wear parts, see chapter
"7.1.4. Wear part exchange" on Page 39
Contact manufacturer: If necessary, return
device for repair and/or replace control unit
Change solenoid coil, see chapter "7.1.4.
Wear part exchange" on Page 39
Use smaller dryer
Contact manufacturer: Return device for
repair and/or replace control unit
DRYPOINT
EN
M eco control
®
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