6-2
Magnetic Stirrer
Thermo Scientific
Section 6
Troubleshooting
Electrical Trouble
Causes
Solution
The unit does not turn on
Incorrect electric power
Compare power source and voltage on
the ID plate and make sure they are
the same. ID plate is found on the back
of unit.
Power failure or circuit breaker
shuts down
Find out the causes of power failure
and recovery.
Main plug not seated properly.
Check the electrical cord connection
at the unit to ensure it is fully seated.
Check the electrical cord connec-
tion at the instrument to ensure it
is fully seated
If the socket / plug / main power line
are cut, request service.
PCB is damaged by reagent
Request service.
Room circuit breaker trips
often when the unit is
turned on or running
Too many plugs connect at the
same time
1. Check the circuit breaker size along
with the voltage and current supplied
to it.
2. Check that several similar units are
inserted together, if so, you should not
use overly.
Product internal circuit problem
Request service
No VFD
Power failure
Check for power interruption
Main plug is not seated
properly
Check electrical cord connection at
the unit to ensure it is fully seated.
Button doesn’t work
Power failure
Find out causes of power failure and
recovery.
Button switch is damaged
Request service.
