VWR 97043-930 - Troubleshooting

Troubleshooting
Problem
Reason
Action
Long alarm after power
plugged in.
Whole screen display
or non-display
The instrument is not ready.
Unplug the power plug
and plug in after 6
seconds
Can't turn on ultrasonic
or heating function.
Power not plugged in
Plug in
The receptacle has no
power
Find a receptacle with
power
Fuse blown
Call qualified maintenance
personnel
Weak ultrasonic effect.
Without degas process, the
solution is easier to produce
bubble after heating.
Turn on for at least 5
minutes
Higher liquid line after putting
in rinsed object
Lower the liquid line to the
recommended liquid level
Dirt covers the trough bottom
Empty the trough and
clean the bottom.
Cleaning solution loses effect
after long use.
Replace solution.
Incorrect status after
pressing button
Switch failure
Shutdown and restart the
instrument
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