Chapter 4 Trouble Shooting; Failure Analysis And Processing Procedures - Labnet MultiGene Mini Operation Manual

CHAPTER 4 TROUBLE SHOOTING

1 Failure Analysis and Processing Procedures

No. Phenomenon
No display and the two beeps
1
missed when power on
Abrupt change in heating
2 speed or bad temperature
control accuracy
Significant change in cooling
3
speed, or unavailable
temperature below ambient
Heating and cooling
4
terminated
5 Lid cannot be heated
Abnormal characters
6
displayed
7 Inactive keys
Failure Analysis
Disconnected power supply
Bad fuse
Switch failure
Others
Ventilation blocked
Bad connection
Cooling module failure
Cooling module failure
Fan failed or stopped
Bad sensor
Malfunction of all cooling
modules
Bad contact between connectors
Loose connection between
connectors
Lid heater failure
Lid sensor failure
Bad contact of chip with its
socket
Chip malfunctioning
Membrane panel damaged
14
Troubleshooting
Check power supply for correct
connection
Replace it (250V 2.5A,Φ5×20mm
or 125V 5A, Φ5×20mm )
Replace switch
Contact Labnet or your distributor
Clear the airflow blockage
Open the device, check the
connectors for reliable connection
Contact Labnet or your distributor
Contact Labnet or your distributor
Contact Labnet or your distributor
Contact Labnet or your distributor
Contact Labnet or your distributor
Contact Labnet or your distributor