Keurig B3000 Service Manual page 90

14. K-Cup Sensor
(blocked)
15. K-Cup Sensor
(unblocked)
16. 120 Hz Clock (60
Hz Power)
17. PT Sanity check
18. Initial Air
Pressurization with
Water Pump,
Pressure transducer
19. Vent Valve opening
under low pressure
20. Full HWT air
Pressurization with
Brew Pump.
Pressure transducer
calibration
21. Half CWT
Pressurization by
sharing;
Vent Tubes
Vent Valve opening
under full over
pressure
22. CWT, Vent Tubes
Leaks
23. HW Dispense valve
24. Brew tank
Thermistor @
ambient temperature
25. Pre-heat tank
Thermistor @
ambient temperature
26. Heaters off
"14: OPEN KCUP"
"MODULE: BR-HEAD"
"15: CLOSE KCUP"
"MODULE: BR-HEAD"
"16: 120 HZ CLOCK"
"MODULE: M-PCB"
"17: LOW PRESSURE
CHECK"
"MODULE: CTRL-
PCB"
"18: CW PUMP.
CLAMP&PSI-M"
"MODULE: CWP, C-
PCB, LEAK"
R LED blinks
"19: VV OPEN LO-PSI"
"MODULE: CWT"
"20: BREW PUMP
7PSI?"
"MODULE: HWT,
LEAKS"
"21: VV OPEN HI-PSI"
"MODULE: CWT"
"22: CWT LEAK"
"MODULE: CWT,
LEAKS"
"23: HWD VALVE"
"MODULE: BR-HEAD"
"24: BREW TEMP"
"MODULE: HWT"
"25: PREHEAT TEMP"
" MODULE: HWT"
"26: HEATER LOW
AMP?"
"MODULE: POWER"
R LED blinks
B3000 SERVICE MANUAL
60-200807-000, REV C
Done by opening the
door. Ejection blocks
sensor!!
Ambient pressure
<0.25
CWP on for 2
seconds. Verify
>0.25 psi
Vent Valve open for
2 seconds – Verify
<0.1 psi
Runs Brew Pump
until 7 psi. Checks
pressure drop below
.21 psi (7 psi - 3%)
over 5s. If pass,
Opens VV.
(tanks equalize)
Wait 5 seconds –
check for pressure 2-
5 psi.
Checks pressure drop
below .21 psi (4 psi -
5%) over 5 seconds
Open VV. Open
HWDV. Verify
HWT <0.1 psi after 2
seconds
Raise the handle
Lower the handle
Auto Cont. if OK
Auto Cont. if OK
Clamp CWT vent
tube, add pressure
gauge. Press Right
Button when ready.
Auto Continue if
OK
Auto Continue if
OK
Auto Continue if
OK
Auto Continue if
OK
Auto Continue if
OK
Auto Cont. if OK
Auto Cont. if OK
Press Right Button
if less than 1 amp
90