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S.24

S.24 — Hot Water Operation Burner On Status (EcoTEC 65kW)

Vaillant · Turbomax Plus Boilers

What does S.24 mean?

This is a status message indicating that the EcoTEC 65kW boiler's burner is actively engaged in producing domestic hot water. This is generally a normal operational message.

Common Causes

  • Boiler actively producing hot water

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    This is typically a normal operating status and requires no action if hot water is being produced.

  2. 2

    If no hot water is being produced despite this status, restart the boiler.

  3. 3

    Check hot water demand settings on your controls.

  4. 4

    If concerns arise, contact a qualified heating engineer.

Browse all codes in this manual (55)
Verified technical data. Last updated: April 2026

Related Faults

F.00F.00 — Flow NTC Cable Defective or Broken (Turbomax Plus)F.00, F.04, F.05, F.10, F.14, F.15F.00, F.04, F.05, F.10, F.14, F.15 — NTC Sensor Fault (Ecomax Pro 828E)F.01F.01 — Feed Temperature Sensor (NTC) Fault or Open Circuit (Turbomax Plus)
Source: Vaillant Turbomax Plus Boilers
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