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Coffee-machine maintenance illustration for Sage BES450 / Sage BES870: Water leaks around or beneath the machine
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Sage BES450 / Sage BES870: Water leaks around or beneath the machine

Manual or automatic purge may be missing the tray, the tray may be loose, or the water tank may not be locked; an external electrical leak is different. Aim the wand into the tray or jug before manual purge, push the tray and tank fully home and dry the area; unplug and stop if fresh water reappears outside the tray.

Manufacturer sources consulted

Models covered

Sage BES450 / Sage BES870 — Water leaks around or beneath the machine. Preserve the exact display, drink and timing, then perform the official check once.

Before checking Sage Coffee machine

  • Keep hands away from hot water, steam, the grinder and moving brew parts. Switch off and unplug before removing a user-removable part; never open the housing, boiler, pump or grinder.

What this symptom can mean on Sage Coffee machine

What this exact symptom meansManual or automatic purge may be missing the tray, the tray may be loose, or the water tank may not be locked; an external electrical leak is different.
Keep neighbouring faults separateThis guide is limited to “Water leaks around or beneath the machine”; a leak near electricity, a dry pump, uncontrolled steam or a different display requires its own path.

4 checks for Sage Coffee machine, starting with Capture the starting point

  1. Capture the starting point

    Photograph or note “Water leaks around or beneath the machine”, the selected drink and what happened immediately before it.

  2. Make the machine safe

    Keep hands away from hot water, steam, the grinder and moving brew parts. Switch off and unplug before removing a user-removable part; never open the housing, boiler, pump or grinder.

  3. Follow the manufacturer check

    Aim the wand into the tray or jug before manual purge, push the tray and tank fully home and dry the area; unplug and stop if fresh water reappears outside the tray.

  4. Retest once and decide

    If the exact symptom clears, observe one normal drink. If it returns, preserve the evidence and contact authorised support instead of repeating resets or guessing a part.

When to stop checking Sage Coffee machine

  • Stop immediately for a hot plug, damaged cable, burning smell, smoke, water near electrical parts, uncontrolled steam, a dry-running pump, a part moving under pressure or the exact fault returning after one documented test.

Next step

After checking Sage Coffee machine: repair, part or service?

Treat “Sage BES450 / Sage BES870: Water leaks around or beneath the machine” as a condition to verify. The first of the 4 documented checks is “Capture the starting point”; its result guides what follows.

Finish the checks before buying

Complete the Sage Coffee machine sequence, starting at “Capture the starting point”. When the symptom clears without a remaining alert, no replacement is indicated.

Arrange a diagnosis if a stop condition appears

Do not condemn Sage Coffee machine from “Sage BES450 / Sage BES870: Water leaks around or beneath the machine” alone. Stop at the warnings above and let a qualified diagnosis establish whether repair remains safe and proportionate.

Sources used

  • Sage — Sage's official manual or model page documents “Water leaks around or beneath the machine” and the bounded user procedure retained here.
  • Sage — Sage's official manual or model page documents “Water leaks around or beneath the machine” and the bounded user procedure retained here.
  • Sage — Sage's official manual or model page documents “Water leaks around or beneath the machine” and the bounded user procedure retained here.
  • Sage — Sage's official manual or model page documents “Water leaks around or beneath the machine” and the bounded user procedure retained here.

Last checked: 30 August 2026