5-2
Section 6
Trouble Shooting
Electrical Trouble
Causes
Solution
No power
Unsuitable power supply.
Meet the electrical requirements of this
instrument before use.
Power cut-off by a circuit
breaker or power
blackout.
Find out why blackout or cut-off happened and
restore power. If there is a short circuit or
leakage, trace the source of the problem and fix
it.
Loose power connection.
Reconnect the power cord firmly to the power
outlet as well as to the power socket at the back
of the instrument.
Damages in power cords,
power outlets or plugs.
Replace the damaged part with a proper one.
Internal circuit failure.
Contact Fisher Scientific for service.
Repetitive tripping of the
circuit breaker
Electrical overload.
Disconnect all the appliances connected to the
breaker first and reconnect them one by one to
find the reason for the overload.
Internal circuit failure.
Contact Fisher Scientific for service.
No operation with power
on
Power cut-off by built-in
overheat prevention
circuit.
If the temperature of the main body exceeds
85
℃
, the built-in overheat prevention circuit
stops heating to protect the instrument.
In such cases, let the instrument cool down for
some time before power reconnection.
Internal circuit failure.
Contact Fisher Scientific for service.
