69
Troubleshooting
Problem
Cause
Possible Remedies
No display and no fan moving
sound when power on
No line voltage
Wait for power restore
Power cord unreliable
Check power cord and plug
Abnormal vibrating noise
Unstable bench
Move to a stable bench
Uneven foot
Move to a stable foot
Loose case screw
Fasten the screw
Normal display but can’t heat or
cool
Heat pump fails or no current is
supplied
Shut off the power
and call service
No display but fan is moving when
power on
LCD fails or LCD related
circuit fails
Shut off the power
and call service
When power on, a message:
“Power failure during running.”
Lost power or power off the cycler
when the last program is still
running
Touch OK to cancel the message. Stop the last
program
Water accumulated in sample wells
The cycler is running under 4°C for
a long time while the ambient
humidity is high
Running the block temperature to 93°C for at least
30 minutes.
Recommended to raise the hold forever
temperature to 10°C.
USB flash drive is not recognized
The USB flash drive is
incompatible with the cycler
Try another USB flash drive.
Tubes are deformed
Tubes are poor in quality, too soft
or bad heat resistance.
Use good quality PCR tubes.
Sample losing because evaporate
Heat lid didn’t work or the set
temperature of lid is too low.
Turn on the heating of lid and set the temperature
to above 105°C.
Tubes, strips or microplate are
poor in quality
Changes tubes, strips or microplate.
Microplate is not sealed tighten.
Ensure tight seal on the microplate.
Sample volume is too small
Sample volume should above 10μl
Sample block temperature (view
via Wells screen of run status
screen) is abnormal
One of heat pumps fails
Shut off the power
and call service
System clock is abnormal
System clock should be reset
Adjust date and time via Tools>System Set screen
The battery in the cycler should be
changed
Shut off the power
and call service
Warning message: “Instrument
failure! Error code: xx”
Shut off the power
and call service
