Keurig B3000 - Page 87

B3000 SERVICE MANUAL
60-200807-000, REV C 87
15. K-Cup® Sensor
(unblocked)
“15: CLOSE KCUP”
“MODULE:
BR-HEAD”
door. Ejection blocks
sensor!!
Lower the handle
16. Brew tank
Thermistor @
ambient temperature
“16:
BREW TEMP”
“MODULE:
HWT”
Auto Cont. if OK
17. Pre-heat tank
Thermistor @
ambient temperature
“17:
PREHEAT TEMP”
”
MODULE: HWT”
Auto Cont. if OK
18. 120 Hz Clock (60
Hz Power)
“18: 120 HZ CLOCK”
“MODULE:
M-PCB”
Auto Cont. if OK
19. Heaters off “19: HEATER LOW
AMP?”
“MODULE:
POWER”
R LED blinks
Press Right Button
if less than 1 amp
20. Brew Tank
Heating Element
power
“20:
BREW 12A?”
“MODULES:
POWER,
HWT”
R LED blinks
Heating Element on
for 3 seconds –
Verify 12A
Press Right Button
if OK, Center Right
to repeat
21. Preheat Tank
Heating Element
power
“21:
PRE 12A?”
“MODULES:
POWER,
HWT”
R LED blinks
Heating Element on
for 3 seconds –
Verify 12A
Press Right Button
if OK, Center Right
to repeat
22. Initial Air
Pressurization with
Water Pump,
Pressure transducer
“22:
CW PUMP.
CLAMP&PSI-M”
“MODULE:
CWP, C-
PCB,
LEAK”
R LED blinks
CWP on for 2
seconds. Verify
>0.25 psi
Clamp CWT vent
tube, add pressure
gauge. Press Right
Button when ready.
23. Vent Valve opening
under low pressure
“23: VV OPEN LO-PSI”
“MODULE:
CWT”
Vent Valve open for
2 seconds – Verify
<0.1 psi
Auto Continue if
OK
24. Full HWT air
Pressurization with
Brew Pump.
Pressure transducer
calibration
“24:
BREW PUMP
7PSI?”
“MODULE:
CWT,
LEAKS”
R LED blinks if 7psi
Runs Brew Pump
until 7 psi. Checks
pressure drop below
.21 psi (7 psi - 3%)
over 5s. If pass, R
LED lights.
Press Right Button
when lit and gauge
at 7 psi
25. Half CWT
Pressurization by
sharing;
Vent Tubes
Vent Valve opening
under full over
pressure
“25:
VV OPEN HI-PSI”
“MODULE: CWT”
Opens VV.
(tanks equalize)
Wait 5 seconds –
check for pressure 3-
5 psi.
Auto Continue if
OK
26. CWT, Vent Tubes
Leaks
“26:
CWT LEAK”
“MODULE: CWT,
LEAKS”
Checks pressure drop
below .21 psi (4 psi)
5% over 5 seconds
Auto Continue if
OK