Labconco ScrubAi Pipette Washer/Dryer 46120 Series - Manuel (Page 30)

Chapter 6: Troubleshooting
Product Service 1-800-522-7658
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PROBLEM CAUSE CORRECTIVE ACTION
Washer will not
drain Clogged drain
Drain hose too high
Or hanging too low Clean out drain.
Reroute drain hose
Filter blocked Check filter in washer and clean as needed.
Drain valve or air
valve not operating Check operation.
Washer overfills Defective fill switch Check operation.
Selection buttons
on control panel
inoperable or
controls
malfunction Microprocessor
memory error Perform "Factory Reset." Press and hold MENU
button and simultaneously turn on power switch.
Release MENU button and display will show the
diagnostics screen. Press MENU until Factory
Reset is displayed. Press SELECT. Press MENU
Return to Menu is displayed. Press SELECT.
Key pad defective Replace key pad.
Water Low Alarm Improper water
supply Make sure water is turned on.
Water pressure must be at least 8 psi
(55kPa) and flow must be at least 1.25 gallons
(4.7 liters)/minute.
At least .67 gallons (2.5 liters) must be available
if using pure water.
Defective fill valve Clean screens inside the inlet fittings of the water
valve.
Check voltage to valve.
Replace valve if it does not operate with proper
voltage.
Restricted flow Check for kinks in water hoses in base of washer
to water inlet fitting on side of tank.
Pipettes do not dry Dry time to short Increase dry time.
Defective air valve Check operation in diagnostics
Check voltage to valve
Temp Fail Alarm
Temperature sensor
failure Replace valve if it does not operate with proper
voltage.
Check connection.
Replace sensor