Ideal Project System 15 Fault codes & diagnostics

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

System Natural Gas 2013-2014 Discontinued
GC Number 41-750-59
No manual available yet We don't hold the official service manual for this model yet. We're sourcing it.

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Fault codes

All 4 documented codes

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IGNITION LOCKOUT

Your boiler has failed to ignite several times and has shut down as a safety precaution to prevent unburnt gas from building up.

High DIY-safe £100-£350 Shared across the Vogue Max System range

What to check first

  1. Check that your gas meter has credit and the isolation valve is open
  2. Check if other gas appliances in your home, like a hob, are working correctly
  3. Press the 'Reset' button on the boiler control panel once

Parts commonly replaced

  • Ignition Electrode
  • Spark Lead
  • Gas Valve
  • Flame Sense Electrode

Related codes

Full explanation for IGNITION LOCKOUT
LOW WATER PRESSURE

Your boiler has detected that there is not enough water in the system to operate safely and has shut down to prevent damage.

High DIY-safe £0-120 Shared across the Vogue Max System range

What to check first

  1. Locate the filling loop (usually a silver flexible hose) underneath or near the boiler.
  2. Slowly open the one or two taps on the filling loop until you hear water flowing.
  3. Watch the pressure gauge on the boiler display until it reaches between 1.0 and 1.5 bar, then close the taps tightly.

Parts commonly replaced

  • Filling loop valve
  • Pressure sensor
  • Expansion vessel

Related codes

Full explanation for LOW WATER PRESSURE
OVERHEAT LOCKOUT

Your boiler has switched itself off because it has become too hot internally, usually because there isn't enough water moving through the system to cool it down.

High DIY-safe £100-280 Shared across the Vogue Max System range

What to check first

  1. Check the pressure gauge and top up the system to 1.5 bar if it is low
  2. Bleed all radiators to remove trapped air
  3. Ensure all radiator valves and the boiler isolation valves are fully open
  4. Press the 'Restart' button on the boiler display

Parts commonly replaced

  • System Pump
  • Overheat Thermostat
  • Thermistor

Related codes

Full explanation for OVERHEAT LOCKOUT
Too many restarts

Your boiler has been manually reset too many times in a short window and has temporarily locked itself to prevent damage while it waits for a proper restart.

High DIY-safe £0-120 Shared across the Vogue Max System range

What to check first

  1. Locate the main power switch (fused spur) for the boiler, usually found on the wall nearby.
  2. Switch the power off completely and wait for at least 30 seconds.
  3. Switch the power back on to clear the temporary lock and allow the boiler to restart.

Parts commonly replaced

  • No parts required (Software lock)
  • Ignition Electrode (if original fault persists)
  • Flame Sensing Probe

Related codes

Full explanation for Too many restarts