DeviceErrors
Error codeEE

Ariston NEXT EVO X 16 SFT Error Code EE: Meaning, Fixes & Troubleshooting

AristonHeaterNEXT EVO X 16 SFTNext Evo X SFTUpdated Apr 16, 2026Confidence: medium
Quick fix

Ariston NEXT EVO X 16 SFT code EE usually means the heater cannot take in water correctly. Check the supply tap, inlet hose, and any filter or connection points before you rerun the appliance.

Jump to the quick fix
SeverityLow
DifficultyEasy
DIY-safe (general)
Time~10 min / ~25 min
Quick fix · Full checks

Summary

Ariston NEXT EVO X 16 SFT error code EE means solar energy function fault protection (water inlet temperature exceeds 65 C). This guide explains the likely causes, the safest first checks, and when support or service is the better next step.

Fix it fast

  1. Confirm the water supply is fully open and household water flow is normal.
  2. Check the inlet hose for kinks, damage, or blockages and clean any accessible inlet filter.
  3. Run a fresh cycle and confirm the appliance fills normally.

What EE means

Solar energy function fault protection (water inlet temperature exceeds 65 C). On the Ariston NEXT EVO X 16 SFT, this code relates to the heater and should be interpreted together with how the appliance is behaving right now.

Common symptoms

  • The heater displays EE instead of normal status information.
  • The current cycle, function, or startup sequence may stop, pause, or behave differently than expected.
  • The same code may return after a reset if the underlying issue is still present.

Most likely causes

  • Water supply is restricted, shut off, or below the required pressure.
  • An inlet hose, filter, valve, or related connection is blocked, kinked, or installed incorrectly.

Deeper checks before service

  1. Check whether the fault started after installation, moving the appliance, or plumbing work.
  2. Make sure all inlet connections are seated correctly and not restricted.
  3. If the code returns after the basic supply checks, the inlet valve or level control may need service.

Safety warnings

  • Isolate water and power before disconnecting inlet hoses or fittings.

When to contact support

Book service if EE returns after the supply and inlet checks, or if there is visible damage to the hose, valve, or fittings.

FAQ

Can EE clear after a reset?
Sometimes a temporary glitch clears after one full reset, but a repeated return usually means the same underlying issue is still there.
Should I keep using the appliance if it works again briefly?
Only if the code stays away and the appliance behaves normally. If the same code comes back, stop and move to service or more targeted diagnosis.