DESCALE
Sage Limescale Accumulation in Hydraulic Circuit

Machine displays 'DESCALE' and may have reduced water flow or temperature issues

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Possible Causes

Hard water use without filter, Overdue descaling, Blocked thermocoil or boiler passages, Scaled flow meter

How to Fix / Troubleshooting

Safety: Use only Sage-approved descaling solution. Do not use vinegar or unapproved acids.

  • Prepare descaling solution:
    • Mix the descaler with water in the tank according to the instructions.
    • Remove any water filter from the tank.
  • Run DESCALE program:
    • Enter the descale mode as per your model’s manual.
    • Allow the machine to run the full cycle through the brew head and steam wand.
  • Rinse thoroughly:
    • After descaling, rinse the tank and fill with fresh water.
    • Run several tanks of plain water through the brew and steam circuits to flush any residue.
  • Repeat if flow is still poor: For heavily scaled machines, a second descale cycle may be necessary.
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Repair Difficulty

Very Easy 1/5
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