LifePro Thermal Cycler Failure analysis and handling
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Chapter VII Failure analysis and handling
This chapter introduces the failures the instrument might have, and the way to analyze and handle.
1. Failure analysis and handling
No Failure Analysis Handling
Power is not connected
Check power and
connect
Fuse is burnt
Replace fuse (250V,
5A, Ф5x20)
Switch is damaged Replace switch
1
The screen doesn’t turn on and a
“du-du” sound is not heard after power
on
Others
Contact supplier or
manufacturer
2
A “du-du” sound is heard after power
on, “Please insert Block!” is shown on
screen, a “du…” alarm is heard.
The plug that connects
module and host
machine is loose
Contact supplier or
manufacturer
3
“Please check error” is shown on
screen while file running, and one of the
following is prompted:
“Temperature sensor disconnect”
“Temperature sensor1 disconnect ”
“Temperature sensor2 disconnect ”
“Temperature sensor3 disconnect ”
Module sensor is
damaged or in poor
contact
Contact supplier or
manufacturer
4
“Please check error” is shown on
screen while file running, and “Heat
sink sensor disconnect” is prompted
Heater sensor is
damaged or in poor
contact
Contact supplier or
manufacturer
5
“Please check error” is shown on
screen while file running, and “Hotlid
sensor disconnect” is prompted.
Hot-lid sensor is
damaged or in poor
contact
Contact supplier or
manufacturer
Ventilation hole is
blocked
Remove things that
block ventilation hole
Connection wire is
loose
Open the case, check
connection wire,
fasten the bolt on
terminal if it is loose
6
Rate of module temperature rise
changes obviously or temperature
control is not accurate
Refrigeration plate is
damaged
Contact supplier or
manufacturer
Ambient temperature or
humidity is too high and
exceeds the operation
condition of instrument
Please adjust ambient
temperature and
humidity properly
Refrigeration plate is
damaged
7
Rate of module temperature fall slows
down obviously or it can’t fall below
room temperature
Fan is damaged or
doesn’t run
Contact supplier or
manufacturer
Temperature sensor is
damaged
8 Module can’t heat or cool
All refrigeration plates
are damaged
Contact supplier or
manufacturer
9 Hot-lid can’t heat
Hot-lid status is set as
“OFF” in system
parameter setting
interface
Set hot-lid status as a
certain temperature