Maintenance, Troubleshooting; Maintenance; Troubleshooting - omi EL 36 Instruction And Maintenance Manual

4. MAINTENANCE, TROUBLESHOOTING AND DISMANTLING

4.1 MAINTENANCE

Before attempting any maintenance operation, make sure that:
1. No parts of the system is under pressure.
2. No parts of the system is electrically powered.
 WEEKLY OR EVERY 40 HOURS OF OPERATION
 Verify the temperature on the control panel display.
 visually check if the condensate is drained regularly.
 MONTHLY OR EVERY 200 HOURS OF OPERATION
 Clean the condenser with a compressed air jet, taking care not to damage the cooling battery
aluminium wings.

At the end of the above mentioned operations, check if the dryer is working properly.
 YEARLY OR EVERY 2000 HOURS OF OPERATION
 Check if the flexible tube used for condensate drainage is damaged and replace it if necessary.
 Check if all connecting pipes are properly tightened and fixed.
 At the end of the above mentioned operations, check if the dryer is working properly.

4.2 TROUBLESHOOTING

NOTE: FOLLOWING BEHAVIORS ARE NORMAL CHARACTERISTIC OF OPERATION AND NOT TROUBLES:
• Variable speed of the fan.
• Visualization of message ESA in case of operation without load.
• Visualization of negatives values in case of operation without load.
TROUBLE DISPLAY
Control panel
display is
blank
Cod. 710.0151.01.00 Rev0B – 08.2012
Troubleshooting and eventual control and/or maintenance operations must be performed
by qualified personnel.
For maintaining the refrigerating circuit of the machine, contact a refrigeration engineer.
POSSIBLE CAUSE
No power in the line.
Problems with cabling.
Problems with the electronic control board.
The dryer is off.
Dryer in stand-by.
Compressed air inlet/outlet inverted.
The flow rate and/or temperature of the air
entering the dryer are higher than the
nominal values.
The ambient temperature is higher than the
nominal values.
The condenser is dirty.
Condensate drain is not functioning.
The temperature control probe is positioned
improperly or faulty.
REMEDY
Restore the power in the line.
Check cabling; if the trouble persists, replace it.
Check the electronic control board; if the trouble persists,
replace it.
Turn it on by pressing the ON/OFF switch for 1 second.
Wait 2 minutes after the dryer is switched on.
Check if the compressed air inlet/outlet is connected
properly.
Restore the nominal conditions.
Restore the nominal conditions.
Clean the condenser.
Clean the condensate drainage system pre-filter. (Pic.3)
Replace the coil of the drainage solenoid valve if burned.
Clean or replace the drainage solenoid valve if
clogged/jammed.
Check the C8 and C9 parameters of the electronic control
board; if the trouble persists, replace it.
Check the probe; if the trouble persists, replace it.
ENGLISH
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