Drawell Scientific
speed of liquid.
10.Turning off the power
1)Power must be switched off after the completion of daily operations or the instrument will not be used for a long period of
time.
2)When sterilization is completed of a day, it is recommended to drain out all water in sterilization chamber.
Chapter 5 Troubleshooting
1.The automatic control system of the sterilizer monitors the real time operation of the instrument. Whenever any failure
occurs, the system may send out alarm and display the error code, then, please press the STOP button to return to
standby status, and turn off the power, check the error code and handle on time.
2.To insure the safety, the chamber cover can be open under the circumstance that no pressure in the chamber and the
temperature is below 80
°C
at the same time
3.Under liquid mode
，
donot press STOP button before the temperature is lower than the boiling point,so as to avoid the
liquid loads overflowing.
Error Code
Possible Causes
Troubleshooting Method
E01
The cover of sterilizer chamber is not
secured
Turn the handle until the cover closed
indicator is on and the cover is
secured
E02
Heater is burnt
Contact the local dealer
E03
No sufficient water inside chamber
makes heater dry scorch.
The elevation above 300m isn’t set
correctly on user administration menu
Set correct elevation
E04
Abnormal fluctuation of power results in
abnormal change of temp
Whether the power supply is between
198V and 242V
E05
Solenoid
valve
jammed
by
contaminants leads to abnormal work of
exhaust valve
Contact the local dealer to change
the automatic steam exhaust value
E06
Temperature sensor comes off the
circuit board
Plug the temperature sensor in place
Temperature sensor is not functional
Replace the temperature sensor
E07
Plug or joint of temperature sensor is
short-circuited
Contact the local dealer to replace
the temperature sensor
E08
Temperature in the chamber when start
working is higher than 100°C
Wait until the temperature falls down
before restart
E10
Power failure in the course of
sterilization
Re-sterilize
E13
Failure of drying temp controller
Contact the local dealer
E14
Failure
of
heating
system
or
temperature control system
Contact the local dealer
E18
Over high pressure in sterilization
chamber
Stop working and contact the local
dealer
E20
Safety valve test circuit failed
Contact the local dealer
The above chart covers the simple problems, if you can not handle them by yourselves, please contact the local dealer
and provide the following information
：
1)Model and Number of Machine