FilterenceHome & Garden
Coffee-machine maintenance illustration for Barista Pro BES878: FLUSH alert stays on
Category illustration

Help · Coffee machine

Barista Pro BES878: FLUSH alert stays on

On Barista Pro BES878, “FLUSH alert stays on” should be checked with the official user procedure before any part is considered.

Manufacturer sources consulted

Models covered

Before checking Sage Barista Pro BES878 / Breville

  • Stop the drink, switch off, unplug where accessible and let hot water, steam and metal parts cool. Never open the housing, bypass an interlock or put fingers into a grinder.

What this symptom can mean on Sage Barista Pro BES878 / Breville

What the exact symptom tells youThe exact display or behaviour is a diagnostic clue, not proof that a pump, grinder, heater or control board has failed.
Rule out the unsafe look-alikeKeep the model code, displayed wording and test conditions unchanged. A different warning, external leak, burning smell or hard mechanical noise is a different and unsafe path.

4 checks for Sage Barista Pro BES878 / Breville, starting with Confirm the model and symptom

  1. Confirm the model and symptom

    On Barista Pro BES878, “FLUSH alert stays on” should be checked with the official user procedure before any part is considered.

  2. Make the machine safe

    Stop the drink, switch off, unplug where accessible and let hot water, steam and metal parts cool. Never open the housing, bypass an interlock or put fingers into a grinder.

  3. Apply the official check

    Use the cleaning disc and tablet exactly as shown, empty the tray, fill to MAX and start FLUSH from the menu without interrupting the cycle.

  4. Retest once and decide

    An alert that clears after the complete cycle is normal maintenance; a repeated alert after correct completion needs Sage support.

When to stop checking Sage Barista Pro BES878 / Breville

  • Stop immediately for an external leak, dry-running pump, burning smell, hot plug, damaged cable, uncontrolled steam or a fault that returns after the single documented test.

Next step

What the Sage Barista Pro BES878 / Breville checks lead to

The 4-check path for “Barista Pro BES878: FLUSH alert stays on” starts with “Confirm the model and symptom” and separates a resolved condition, an identified part and a case requiring service.

No purchase after a successful check

Follow the Sage Barista Pro BES878 / Breville controls in order. If “Confirm the model and symptom” and the remaining checks restore normal operation with no warning, stop without replacing anything.

Escalate only on the documented warning signs

For “Barista Pro BES878: FLUSH alert stays on”, use the stop conditions above rather than the symptom by itself. Professional confirmation should precede any decision to replace Sage Barista Pro BES878 / Breville.

Sources used

  • Sage — Sage's official Care & Cleaning for Barista Pro BES878 states exactly: “The LCD will display a FLUSH alert when a cleaning cycle is required.”.

Last checked: 30 August 2026