3-2 - R4.5 Machine Power Off

3-2-1-1 - Turn off the machine, and verify the type of outlet provided to DrinkBot Pro by the customer.

• Result 1 - GFCI outlet or surge-protected outlet.
  Start 3-2-1-2.
• Result 2 - Regular outlet.
  Start 3-2-1-4.

3-2-1-2 - Verify if the customer's GFCI outlet (or surge-protected outlet) has tripped.

• Result 1 - Tripped.
  Start 3-2-1-3.
• Result 2 - Not tripped.
  Start 3-2-1-4.

3-2-1-3 - Reset the outlet, then turn on DrinkBot Pro and verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: GFCI outlet / surge-protected outlet has tripped)
• Result 2 - Only the fridge is started.
  Start 3-2-3-1.
• Result 3 - Still power off.
  Start 3-2-2-1.

3-2-1-4 - Turn on DrinkBot Pro and verify the machine startup status.

• Result 1 - Only the fridge is started.
  Start 3-2-3-1.
• Result 2 - Still power off.
  Start 3-2-2-1.

3-2-2-1 - With the confirmation of the power cord connection, check if the power switch is lit.

• Result 1 - The power switch is lit.
  Start 3-2-3-1.
• Result 2 - The power switch is not lit.
  Start 3-2-3-2.
  
  
  

3-2-2-2 - Measure the voltage at the customer’s output. The expected reading should be as follow:

Live and neutral: 120V (Abnormal if the reading exceeds ±10%)

Live and ground: 120V (Abnormal if the reading exceeds ±10%)
Neutral and ground: Around 0.6~0.7V (Abnormal if the reading exceeds 1V)

• Result 1 - All the readings fit the above value.
  Start 3-2-2-3.
• Result 2 - Any of the readings is abnormal.
  Escalate to TSA to further discuss with the customer for power output repair. 
  (Root cause: Customer power output abnormal)

3-2-2-3 - Open the power switch access panel, and verify that the fuse and switch (Live and neutral, at "ON" position) are closed circuits. (see the picture below)

• Result 1 - The fuse is the open circuit.
  Start 3-2-2-4.
• Result 2 - The switch is the open circuit.
  Start 3-2-2-5.

3-2-2-4 - Replace the fuse (see SOP here), and verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: fuse failure)
• Result 2 - Only the fridge is started.
  Start 3-2-3-1.
• Result 3 - Still power off.
  Start 3-2-2-5.

3-2-2-5 - Replace the power switch (see SOP here), and verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Power switch failure)
• Result 2 - Only the fridge is started.
  Start 3-2-3-1.

3-2-3-1 - Verify if there is an ICL connecting the circuit between the power switch and the power supply.

• Result 1 - Yes.
  Start 3-2-3-2.
• Result 2 - No.
  Start 3-2-3-3.

3-2-3-2 - Bypass the ICL, then turn on the machine to verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: ICL failure)
• Result 2 - Only the fridge is started.
  Start 3-2-3-3.

3-2-3-3 - Measure the voltage at the power supply output, the expected reading should be 24V DC.

• Result 1 - The reading is 24V DC.
  Start 3-2-4-1.
• Result 2 - The reading is not 24V DC.
  Start 3-2-3-4.

3-2-3-4 - Verify if the system immediately shuts down after starting up.

• Result 1 - The system shuts down immediately.
  Start 3-2-3-5.
• Result 2 - Only the fridge is started.
  Start 3-2-3-6.

3-2-3-5 - Execute the power supply short circuit prevention (see "Key Point" in this SOP), then turn on the machine to verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Power supply short circuit)
• Result 2 - Only the fridge is started.
  Restart 3-2-3-3.

3-2-3-6 - Replace the power supply (see SOP here), execute the power supply short circuit prevention if the power supply bracket is without the features shown in the picture, then turn on the machine to verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Power supply failure)
• Result 2 - Only the fridge is started.
  Start 3-2-4-1.

3-2-4-1 - Verify the LED lights are lit on the control board.

• Result 1 - The LED lights are lit.
  Start 3-2-4-4.
• Result 2 - The LED light are not lit.
  Start 3-2-4-2.

3-2-4-2 - Measure the voltage on the “b25_24V in” connector on the control board. The expected reading should be 24V DC.

• Result 1 - The reading is 24V DC.
  Start 3-2-4-4.
• Result 2 - The reading is not 24V DC.
  Start 3-2-4-3.

3-2-4-3 - Reconnect the power wires connecting with the “b25_24V in” connector on the control board and the power supply 24V DC output. Then turn on the machine to verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Disconnection of 24V DC inlet on the control board)
• Result 2 - Only the fridge is started.
  Restart 3-2-4-1.

3-2-4-4 - Verify if the Mini PC power light is lit.

• Result 1 - The power light is lit.
  Escalate to FAE.
• Result 2 - The power light is not lit.
  Start 3-2-4-5.

3-2-4-5 - Measure the voltage on the “b35_J_PC_PWR (Power)” connector on the control board. The expected reading should be 12V DC.

• Result 1 - The reading is 12V DC.
  Start 3-2-4-6.
• Result 2 - The reading is not 12V DC.
  Start 3-2-4-7.

3-2-4-6 - Reconnect the USB cable connecting the control board and the Mini PC. Then turn on the machine to verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Disconnection of 24V DC inlet on the Mini PC)
• Result 2 - Only the fridge is started.
  Start 3-2-4-8.

3-2-4-7 - Replace the control board (see SOP here), then turn on the machine to verify successful machine startup.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Control board failure)
• Result 2 - Only the fridge is started.
  Restart 3-2-4-1.

3-2-4-8 - Replace the Mini PC (see SOP here), then turn on the machine to verify if the machine can start up and load the Botrista homepage without issue.

• Result 1 - Machine startup without issue.
  Issue close. (Root cause: Mini PC failure)
• Result 2 - Only the fridge is started.
  Escalate to FAE.