Diagnostics/Error Codes - Keurig B3000 Service Manual

3. Diagnostics – Error Codes:
The B3000 contains real-time error detection. There are a number of operational errors that, if
encountered, will disable the brewer, produce an error code onto the LCD display, and will also flash all
4 buttons on the front panel LED's to attract attention. The power may be cycled to attempt to clear the
error, but if it occurs again, the same message will be displayed.
Below is a summary of all errors, their meanings and the menu messages.
ERROR CODES
01
02
03
04
05
06
07
08
09
10
MESSAGE DISPLAY
ERROR – TCO HIGH OPEN
CALL FOR SERVICE
000-000-0000
ERROR – TCO LOW OPEN
CALL FOR SERVICE
000-000-0000
ERROR – DESCALE NOW
CALL FOR SERVICE
000-000-0000
ERROR – CHECK WATER SUPPLY
CALL FOR SERVICE
000-000-0000
ERROR –
RUNAWAY FILL
CALL FOR SERVICE
000-000-0000
ERROR – LOW TANK FROZEN
CALL FOR SERVICE
000-000-0000
ERROR – HIGH TANK FROZEN
CALL FOR SERVICE
000-000-0000
ERROR – LOW TANK HI TEMP
CALL FOR SERVICE
000-000-0000
ERROR – HIGH TANK HI TEMP
CALL FOR SERVICE
000-000-0000
ERROR – COIN JAM
CALL FOR SERVICE
000-000-0000
B3000 SERVICE MANUAL
60-200807-000, REV C
PROBABLE CAUSE
MODULES: POWER, HWT
MODULES: POWER, HWT
DESCALE REQUIRED
MODULES: CWT, POWER
MODULES: CWT, POWER
PREHEAT TANK COLD
MODULES: HWT
BREW TANK COLD
MODULES: HWT
MODULES: POWER, HWT
MODULES: POWER, HWT
MODULES: COIN MECH
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