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B3000 SERVICE MANUAL

60-200807-000, REV C 35

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 MESSAGE DISPLAY PROBABLE CAUSE

ERROR – TCO HIGH OPEN

CALL FOR SERVICE

000-000-0000

MODULES: POWER, HWT

ERROR – TCO LOW OPEN

CALL FOR SERVICE

000-000-0000

MODULES: POWER, HWT

ERROR – DESCALE NOW

CALL FOR SERVICE

000-000-0000

DESCALE REQUIRED

ERROR – CHECK WATER SUPPLY

CALL FOR SERVICE

000-000-0000

MODULES: CWT, POWER

ERROR – RUNAWAY FILL

CALL FOR SERVICE

000-000-0000

MODULES: CWT, POWER

ERROR – LOW TANK FROZEN

CALL FOR SERVICE

000-000-0000

PREHEAT TANK COLD

MODULES: HWT

ERROR – HIGH TANK FROZEN

CALL FOR SERVICE

000-000-0000

BREW TANK COLD

MODULES: HWT

ERROR – LOW TANK HI TEMP

CALL FOR SERVICE

000-000-0000

MODULES: POWER, HWT

ERROR – HIGH TANK HI TEMP

CALL FOR SERVICE

000-000-0000

MODULES: POWER, HWT

ERROR – COIN JAM

CALL FOR SERVICE

000-000-0000

MODULES: COIN MECH

Brand	Keurig
Model	B3000
Category	Coffee Maker
Language	English

Keurig B3000 Service Manual

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