Keurig B3000 Service Manual page 91

27. Brew Tank
Heating Element
power
28. Preheat Tank
Heating Element
power
29. Transmit and receive
a "1" and "0"
through the coin IF
30. Done
Test 20 pressurizes the entire hot water part of the brewer, thus checking for leaks in:
• All vent line components from the tank through the VV.
• The HWT
• All fill line components from the HWT through the CWP. Tested open in 21
• All brew line components.
Test 21 pressurizes the cold water part of the brewer, thus checking for leaks in:
• The vent line from the CWT to the bin.
• The CWT
• The tube from the CWT to the CWP.
• The inlet valve and high pressure tubing. (to 4 psi)
Some components are not tested:
• Float valve
• CWT and HWT drains open
• Dispense line from Dispense Valve to Mug
• Thermostats opening and Thermostat sensors seeing opens
• Conductive probes and power
• Inlet Valve
• Hi-Pot
• The second CWP
The coin IF loop back plug shorts the transmit to receive pin (RJ11 pins 3 and 4).
"27: BREW 12A?"
"MODULES: POWER,
HWT"
R LED blinks
"28: PRE 12A?"
"MODULES: POWER,
HWT"
R LED blinks
"29: VEND I/F
LOOPBACK"
"MODULE: M-PCB,
PWR-PANEL"
"30: PASS, !!!!"
"DONE"
B3000 SERVICE MANUAL
60-200807-000, REV C
Heating Element on
for 3 seconds –
Verify 12A
Heating Element on
for 3 seconds –
Verify 12A
Power off
Tested open in 19
Not tested open
Not tested open
Tested open in 18
Not tested open
Press Right Button
if OK, Center Right
to repeat
Press Right Button
if OK, Center Right
to repeat
Auto Continue if
OK
Stop
91