Esco Isotherm IFC-110-8, User Manual

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17
Low Temperature BOD Incubator
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Under no circumstances should the unit be disassembled, repaired, or converted by unqualified people. Failure
to follow these instructions may cause personnel injury and/or loss of property due to malfunctions, electric
shocks or fire.
Should the unit malfunction, stop the operation, and then pull out the power plug or turn off the power supply
at source. Continuing to operate the unit when it shows signs of malfunctioning may cause electric shocks or
fire.
The following troubleshooting are some of the basic problems that can be solved by the user or operator.
However if the problem persist, please contact your local distributor.
Problem 1: Unit doesn’t start
Possible Cause Corrective Action
Power Failure
Check if there is power at the wall/building socket.
You can use voltmeter to check power on the wall/building socket.
Ensure the building socket switch is at ON position
Check whether power cord has been connected properly into wall/building socket
and also into the unit.
Power Distribution
Board Fuse has
blown
Please check first with your electrical engineer certified
Contact ESCO technical service for replace the fuse
NOTE: It is recommended to disconnect the main power cord from the outlet wall socket when
accessing the electrical panel to prevent electric shock.
Problem 2: Compressor doesn’t start
Possible Cause Corrective Action
No power to motor
compressor
Check power to and from power distribution board.
Check power and connection at compressor terminals in power distribution board.
Faulty Capacitors
To ensure these capacitors are working, check the capacitance across the two wire
ends of the capacitor.
Open the terminal connection block cover to expose the cable connections for the
capacitor.
Note: When measuring capacitors, ensure that the power supply is off. There may be some
electrical charge inside the capacitor so it is best to let it discharge itself for about 2-3 minutes
right after operation. Check capacitor voltage across terminals first to ensure that it is fully
discharged before measuring capacitance.
Problem 3: Convection fan is not working
Possible Cause Corrective Action
Power Failure
Check the connection at forced convection pin on power distribution board is
connected properly
Check the voltage is 220-240 volts and 50 Hz.
Problem 4: Condenser fan is not working
Possible Cause Corrective Action
Power Failure
Check the connection at terminal block and check the voltage is 220-240 volts and
50 Hz.
Check the connector is connected properly