Fault

       Cause analysis

Troubleshooting

Remark

No sound in buzzer

1、The buzzer is broken

Change a buzzer

There is abnormal sound in relay during work

1、Network voltage is over low or seriously fluctuated

Suggest adopting a voltage stabilizer

Generally, this fault usually occurs when the voltage of phase line is lower than 170V

2、The network power line is thin, power capacity is insufficient

The machine is recommended to use more than a single 2.5 square power cord

3、Relay is broken

Change it

There is alarm of water shortage

1、Water level in sterilizer is low

Check the water level, or replenish it in time;

2、Level indicator is damaged

Change it

3、Affected by damaged relay

Replace the relay

Pressure is unreachable to safe value after venting

1、Vent valve is blocked

Clear away impurities or change a vent valve

2、Pressure gauge breaks down

Change it

Green light and red light are flickering alternatively

1、Water level of sterilizer changes between sufficient or insufficient

Stop to work, cut off the power, and add to the suitable level