BoilerFaultCodes.com

Glow-worm Hideaway 40B 50B 60B FF Fault Codes

Regular Natural Gas 11.7-17.6 kW 1994-2003 Discontinued
GC Numbers: 41-313-1741-313-1841-313-19

Replaced by: Flexicom heat

This boiler uses indicator light combinations

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

Most common fault codes

Alternating Slow Flashing (2Hz)
Your boiler's internal computer has encountered a logic error and has stopped working to protect itself.
Gas Safe engineer required · £280-450
Burner On neon going out
Your boiler is failing to detect its own flame correctly, causing it to shut down shortly after trying to start.
Gas Safe engineer required · £120-250
Indicator 1 (Reset) Fast Flashing (8Hz)
Your boiler's internal computer has encountered a digital error and is unable to communicate with the system components.
May be DIY safe · £180-350

All 27 fault codes

Code Severity Plain English
Alternating Slow Flashing (2Hz) High Your boiler's internal computer has encountered a logic error and has stopped working to protect itself.
Burner On neon going out High Your boiler is failing to detect its own flame correctly, causing it to shut down shortly after trying to start.
Indicator 1 (Reset) Fast Flashing (8Hz) High Your boiler's internal computer has encountered a digital error and is unable to communicate with the system components.
Indicator 1 (Reset) Lit High Your boiler has switched itself off as a safety precaution because it has either detected a fault or has become too hot.
Indicator 1 (Reset) Slow Flashing (2Hz) High Your boiler's internal computer has developed a fault and can no longer control the heating process safely.
Indicator 2 (Burner Lit) Fast Flashing (8Hz) High Your boiler has tried to ignite several times but failed to start, so it has locked itself out for safety.
Indicator 2 (Burner Lit) Lit Low Your boiler is working exactly as it should and is currently burning gas to provide heat.
Indicator 2 (Burner Lit) Slow Flashing (2Hz) High Your boiler has detected an internal electronics error or a communication failure that is preventing the burner from starting correctly.
Indicator sequence: Fast Flashing High Your boiler is trying to start up but cannot successfully light the gas to create a flame.
Indicator sequence: Slow Flashing High Your boiler has reached an unsafe temperature and has shut itself down to prevent damage.
Indicator: Reset/Standby lit High Your boiler has switched itself off because it has either gotten too hot or it failed to light the flame correctly.
NEON1 Low This light simply indicates that the boiler is receiving power and is switched on at the wall or spur.
NEON2 Low Your boiler is receiving a signal to provide heat or hot water, which typically means it is operating as normal.
NEON3 High Your boiler has detected that the internal fan is spinning, but it hasn't received the signal to proceed with the next step of the ignition process.
NEON4 Low Your boiler is currently operating normally and the burner is ignited as it should be to provide heat.
NEON5 High Your boiler has switched itself off because it has detected that the water inside has become dangerously hot.
Neon6 High Your boiler has stopped working because it failed to light or stay lit when it was supposed to.
Reset neon High Your boiler has safety-tripped and needs a manual restart to clear a temporary glitch or overheating issue.
Reset neon being 'ON' and the 'Burner on' neon flashing High Your boiler has tried to light several times but failed, so it has safely shut itself down to prevent any issues.
Reset neon flashing fast and Burner ON flashing slow High Your boiler has detected an issue with the electrical components responsible for venting waste gases safely from the system, preventing it from firing up.
Reset neon flashing slowly and Burner ON flashing fast High Your boiler has stopped working because its internal sensors or control board have detected an electrical communication problem and it can no longer monitor the temperature safely.
Reset neon lights High Your boiler has safety-tripped and simply needs a manual restart to try and fire up again.
Reset neon lit and Burner ON flashing High Your boiler has detected a general operating fault and has shut itself down for safety.
Reset/Standby indicator permanently ON and Burner On indicator flashing fast (8 Hz) High Your boiler has tried to light itself several times without success and has now locked itself for safety.
Simultaneous 1 Slow / 1 Fast High Your boiler is failing to start because its internal safety checks haven't confirmed that the fan is pushing waste gases out of the flue correctly.
Simultaneous Fast Flashing (8Hz) High Your boiler has detected a communication problem with its temperature sensor and has stopped running for safety.
Simultaneous Slow Flashing (2Hz) High Your boiler has detected that the electrical wiring is connected backwards or there is a grounding issue, which is preventing it from starting for safety reasons.

Glow-worm Hideaway 40B 50B 60B FF is discontinued — time for a new one?

Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.

UK's #1 online installer
Boxt
Fixed-price online quotes. Next-day installation.
Get a free quote →
Heatable
Instant online boiler quotes from £1,499.
Get a free quote →
iHeat
Fast installation. Price match guarantee.
Get a free quote →

Affiliate links — we may earn a commission at no extra cost to you.