6
Case 2: Shut off the power. Then power on, if it alarm right away. The cable between the
chamber wall sensor and mainboard is disconnected, or the sensor had been destroyed.
Solution:Shut down the power, check if the cable of chamber sensor is connected well.
If it connect well you shall replace sensor.
Case 1: Before appear E4, the temperature had never reached to 135 , and the pressure is
over 225kpa, and release steam frequently.
Solution: Please check the altitude set, normally adjust to "+1" (Please refer the instructions manual)
Case 2: Before appear E4, the pressure is lower than 10kpa, and temperature is around 100 or less than.
Solution: Please check the air release valve, if it is working normally.
Case 3: When appear E4, the temperature is below . There is no steam inside the chamber.
Touch the top inside the chamber, feel the temperature is not too high.
Solution: Check the chamber heater whether it works. Does the cable connected well?
Does the chamber wall temperature protector work?
Case 4: When appear E4 the temperature is below 100 .There is no steam inside the chamber.
Restart the machine. Waiting for 15 minutes. Check the indicator light of steam generator
indicator light on the mainboard. The light is blinking. Or it haven't enter the pre vacuum
stateifitisclassB.
Solution: Check the steam generator works. Check the cable of the heater. Check the cable on the
steam generator protector. Check the steam generator protector works. Check the heater
of steam generator.
Case 5: When appear E4, the temperature is below 100 . There is no steam inside the chamber.
Restart the machine. Wait for 15 minutes. Check the indicator light of steam generator indicator
light on the mainboard. The light does not blink or for a long interval. Or the pre vacuum state
hadfinishedifitisclassB.
Solution Check the water pump, check the cable of water pump. Check the water pump valve V3.
Case 6:When appear E4, the temperature is higher than 100 . The pressure is higher than 0.2bar.
Solution: Check the heater of steam generator. Check if there is a big leakage on the steam generator.
Check the water release valve V4 and air release valve V1, if they can be closed completely.
You may observe the tube before the valve when the program is running and the pressure is
higher than 0.2bar.
If the valve have not been closed completely you will find the steam or water flow to
condenser continuously.
Check if there is a big leakage on the steam generator. Or in the other place
Case 7 There is a big leakage. Found some steam or steam leak when the sterilizer works.
Solution Replace the part.
Please check if the air release valve seize up
Solution: Please do not force opening the door under the state of high pressure.
Shut down the power, if the steam pressure is not released, it means the air release valve is
blocked. Turn on the power, waiting for its cooling until the pressure value is zero, or pull the
safety valve to release the pressure. Then open the door, replace the air release valve V1.
E4
E5
Alarm condition: It spent too long time to reach the holding state, normally over 1 hour
after starting a cycle, it will appear E4.
Alarm condition: Fail to release the pressure
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