Drawell DW-FD Sereries Manual do utilizador - Página 13
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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， do not press STOP button before the temperature is lower than the boiling point,so as to avoid the
liquid loads overflowing.
Error Code
E01
E02
E03
E04
E05
E06
E07
E08
E10
E13
E14
E18
E20
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
Drawell Scientific
Possible Causes
The cover of sterilizer chamber is not
secured
Heater is burnt
No sufficient water inside chamber
makes heater dry scorch.
The elevation above 300m isn't set
correctly on user administration menu
Abnormal fluctuation of power results in
abnormal change of temp
Solenoid
valve
jammed
contaminants leads to abnormal work of
exhaust valve
Temperature sensor comes off the
circuit board
Temperature sensor is not functional
Plug or joint of temperature sensor is
short-circuited
Temperature in the chamber when start
working is higher than 100°C
Power
failure
in
the
sterilization
Failure of drying temp controller
Failure
of
heating
temperature control system
Over high pressure in sterilization
chamber
Safety valve test circuit failed
Troubleshooting Method
Turn the handle until the cover closed
indicator is on and the cover is
secured
Contact the local dealer
Set correct elevation
Whether the power supply is between
198V and 242V
Contact the local dealer to change
by
the automatic steam exhaust value
Plug the temperature sensor in place
Replace the temperature sensor
Contact the local dealer to replace
the temperature sensor
Wait until the temperature falls down
before restart
course
of
Re-sterilize
Contact the local dealer
Contact the local dealer
system
or
Stop working and contact the local
dealer
Contact the local dealer