... to “test” position.5. Please turn on the “A” district button, if all the testing LED (10 in total) change red ... turn on the A, B, and C button and turn off others. If you press button “1”, and A1, B1 and C1 will ... .3. Do not shake machine violently;4. Don’t press the “FIRE” button after disconnecting the power. Because there might be sufficient ...