Fisher Scientific Isotemp FBG Serie Manuel D'utilisation page 33

Troubleshooting
WARNING: Troubleshooting procedures involve working with high voltages which can cause injury or
death. Troubleshooting should only be performed by Factory Authorized Service Personnel.
This section is a guide for troubleshooting equipment problems. Component parts must be replaced only with like
components.
Table 16. Troubleshooting Procedure
Problem
Unit does not operate or
Power Failure Indicator is on Power supply
Temperature too high
Temperature fluctuates/
insufficient cooling
The equipment makes too
much noise
Cause Solution
Check that the cord is securely plugged in.
Plug another appliance into the outlet to see if it is live.
Check that the double pole circuit breaker located next to the power
inlet is in "ON" position (i.e "I" position). Try cycling the switch to OFF
position (i.e "O" position) and then bring to ON position ("I").
Test the voltage and verify that it is correct for your unit
(refer to Table 2).
If the outlet is dead, check the circuit breaker or fuses.
The unit should not be connected to a GFCI (Ground Fault Circuit
Interrupter) protected outlet as it may be subject to nuisance tripping.
Reset control
Control setting If parameter settings have been changed but the unit is not reflecting
too high changed parameters, it is recommended to power the controller
off and on again to realign any timings in progress. Wait at least 5
seconds after changing the parameter settings before powering the
controller off in order to allow the data to be correctly saved to the
memory.
Inadequate air
circulation
Improve air movement
Temperature Make sure that the control is set correctly.
control
Condenser Make sure the condenser is clean.
clogged
If the temperature control is set correctly, the condenser is clean,
Other causes but temperature continues to fluctuate, call an authorized service
representative.
The equipment Place the equipment on an even surface or use use shims to adjust
is not level height at corners, refer to previous installation section for instructions.
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