Vaillant Turbomax 242/282 1E Fault codes & diagnostics

1 fault code with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

Combi Natural Gas 24-28 kW 1998-2002 Discontinued

Replaced by: Turbomax Plus

Download the Vaillant Turbomax 242/282 1E manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

This boiler uses indicator light combinations

Note which lights are on, off, or flashing and at what speed. Match the combination to the cards below. Do not reset until you have noted the pattern. How to read fault codes →

Fault codes

All 1 documented codes

Tap any card for details

Burner lock out indicator

Your boiler has stopped trying to light because it cannot detect a steady gas supply.

High Engineer only £120-250

Parts commonly replaced

  • Ignition electrode
  • Gas valve
  • Printed Circuit Board
Full explanation for Burner lock out indicator
Status & diagnostic codes

7 operating states & engineer diagnostics

Not faults — these are normal operating states. Tap to expand.

Fan operation indicator Status Your boiler is successfully checking that its internal air extraction system is working correctly, which is a normal part of the startup process. Flame indicator Status Your boiler is working exactly as it should and has successfully lit the flame to heat your water or home. Hot water demand indicator Status Your boiler is working exactly as it should and is simply confirming that it has received your request to heat water for your tap or shower. Ignition indicator Status Your boiler is attempting to light the flame, but it is not staying lit or detecting the burner, which prevents your heating and hot water from working. Power on indicator Status Your boiler is receiving power as normal and is currently switched on. S.010 Status Your boiler is currently in standby mode because it does not detect a request for hot water. S.015 Status Your boiler is currently just finishing its standard cooldown process after you recently used your hot water taps.