Troubleshooting - Hedson Drester ACE DG2A Bedienungsanleitung

26. TROUBLESHOOTING

If any problems remain after troubleshooting, contact a service technician
For more information about DRESTER ACE units, see the following documents:
• spare parts list (for all models)
• pneumatic circuit (for each model)
• fluid circuit (for each model)
Problem
Limited or no flow during
prewash cycle.
Pump does not stop after
1.5 minutes.
Prewash pump does not
operate.
Ventilation does not start
when lid is opened.
Manual spray nozzle in
automatic washer does
not work when pedal is
pressed.
231721 rev.1 2022-12-01 231721 Rev. 1 2022-12-01
Drester ACE Drester ACE
Cause
Strainer on suction hose
blocked.
Suction hose does not pick
up solvent.
Spray nozzles in automatic
washer blocked.
Check valves in pump
blocked or not sealing.
Timer air leak unit blocked. For replacement, contact a
Start valve leaking
continuously.
Check air pressure and
feed hose.
Check start valve function.
Lid arm does not reach the
safety valve.
Safety valve does not work. For replacement, contact a
Safety valve does not work. For replacement, contact a
Lid arm does not reach the
safety valve.
Spray valve does not work.
.
What to do
Clean or replace.
Check suction hose for
leaks.
Check whether solvent
drum is empty.
Remove and clean nozzles.
Remove pump connectors,
clean valves, and remove
blockage.
service technician.
For replacement, contact a
service technician.
Make sure air feed to unit is
according to technical data.
For replacement, contact a
service technician.
Adjust lid arm position.
service technician.
service technician.
Adjust lid arm position.
Check pedal and valve
function.
For replacement, contact a
service technician.
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