Thermo Scientific Wellwash Versa User Manual page 138

Troubleshooting Guide
Troubleshooting guide
Symptom
Wrong volume is
aspirated.
Plate is processed
incorrectly.
Reagents are mixed.
Keys of the keypad do
not function.
Display does not show
all the information or
anything at all.
Liquid is dispensed
onto the plate carrier.
Liquid is spilled during
operation.
Priming failed.
Tips are dripping.
136 Thermo Scientific Wellwash Versa User Manual
Description
Ambient temperature is too high or too low.
Overpressure in the bottle.
Pump characteristics have changed.
Wrong parameters are used.
A non-active valve is leaking.
Keypad is broken.
Display is broken.
The plate orientation is incorrect.
The installed wash head is incorrect.
Well volume or shake speed is too high.
Tubing incorrectly installed.
Tubing and/or liquid filters are clogged.
Priming volume too low.
Not enough buffer liquid.
Instrument has not been used for a long
time.
Liquid system completely dry or abnormal
placement of liquid bottles.
Air leak.
Valve is leaking.
Suggested action
Check the ambient temperature.
Do not cover the venting holes in the bottle caps.
Contact authorized technical service.
Check the parameters.
Component failure. Contact authorized technical
service.
Contact authorized technical service.
Contact authorized technical service.
Check the layout and place the plate in the correct
orientation required by the wash head configuration.
Check the wash head and replace the correct wash
head required by the layout and the protocol.
Check the tubing and O-rings, and replace if needed.
Decrease the well volume or shake speed.
Check the tubing.
Clean or replace the tubing.
Increase the priming volume.
Fill the corresponding buffer bottle completely.
Use the Maintenance > Service > Boost prime
option.
Move the liquid bottles to the instrument level.
Perform a manual priming, see "Manual priming" on
page 121.
Check that the tubes and wash head plugs are
properly fitted.
Check that the tubing is intact.
Apply silicone to the O-ring.
Contact authorized technical service.
Cont.
Thermo Fisher Scientific