Ideal Classic SE15P FF Fault codes & diagnostics

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

RegularLPG LPG 14.7 kW 1997-2005 Discontinued
GC Number 41-392-12

Replaced by: Logic+ Heat

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Fault codes

All 2 documented codes

Tap any card for details

Neon I3

Your boiler is receiving power and is in standby mode, waiting for a signal to provide heating or hot water.

Low DIY-safe

What to check first

  1. Check that your room thermostat is turned up high enough to demand heat
  2. Ensure your programmer or digital timer is set to 'ON' or 'AUTO'
  3. Verify that the boiler's temperature control knob is not set to the 'Off' position
Full explanation for Neon I3
Neon SG1

Your boiler is currently trying to light the gas burner and this light will turn off automatically once the flame is successfully established.

Low DIY-safe £0-120

What to check first

  1. Check that your gas supply is turned on at the meter
  2. If the light continues to flash without the boiler firing up, press the reset button
  3. Ensure any external controls like thermostats are calling for heat

Parts commonly replaced

  • Ignition Electrode
  • Detection Lead
  • PCB
Full explanation for Neon SG1