BoilerFaultCodes.com

Glow-worm 30ci Plus Fault Codes

Combi Natural GasLPG 30 kW 2005-2009 Discontinued
GC Number: 47-019-03

Replaced by: Flexicom cx

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Most common fault codes

0.5bar
Your boiler has lost water pressure and has shut down to prevent damage, meaning you currently have no heating or hot water.
May be DIY safe · £0-120
01
Your boiler has stopped working because it cannot light the gas burner to provide heating or hot water, usually because the gas supply is interrupted or the ignition spark has failed.
May be DIY safe · £120-350
02
Your boiler has stopped working because the fan isn't starting up to safely clear waste gases from the system.
Gas Safe engineer required · £120-£350

All 41 fault codes

Code Severity Plain English
0.5bar High Your boiler has lost water pressure and has shut down to prevent damage, meaning you currently have no heating or hot water.
01 High Your boiler has stopped working because it cannot light the gas burner to provide heating or hot water, usually because the gas supply is interrupted or the ignition spark has failed.
02 High Your boiler has stopped working because the fan isn't starting up to safely clear waste gases from the system.
2.7bar Emergency Your boiler has too much water inside it, causing the pressure to rise to an unsafe level.
03 High Your boiler has detected an issue with how it moves air and waste gases through the system, causing it to shut down for safety.
04 High Your boiler has stopped working because it cannot light the gas needed to provide heating and hot water.
05 High Your boiler has shut down because it has detected it is getting too hot, usually due to a lack of water flow or a circulation blockage.
06 High Your boiler has stopped working because a sensor that measures the temperature of the water leaving the unit has failed or has a poor connection.
07 Medium Your boiler is struggling to accurately measure the temperature of your hot water due to a faulty internal sensor.
08 Medium Your boiler has detected a problem with the sensor that monitors the temperature of its internal hot water store.
09 High Your boiler has lost the ability to monitor its own water pressure, meaning it has shut down to prevent damage even if there is enough water inside.
10 High Your boiler has stopped working because a sensor that monitors the temperature of the water returning from your radiators has developed a fault.
11 High Your boiler's main internal screen is having trouble communicating with the central control board, meaning the boiler cannot receive commands to turn on.
12 High Your boiler is having trouble communicating with the control panel or your thermostat, meaning it cannot receive your instructions to turn on.
13 High Your boiler's internal computer has developed a fault and can no longer control the heating system safely.
14 High Your boiler has reached an unsafe temperature and has shut itself down to prevent damage or overheating.
15 High Your boiler is unable to control the gas flow properly, which is preventing it from lighting to provide heating or hot water.
16 Emergency Your boiler has detected a problem with how gas flows into the unit, meaning it has shut down for safety to prevent a gas-related issue.
17 High Your boiler has stopped working because the electrical power coming from your mains supply has dropped too low for it to run safely.
18 High Your boiler's control panel and its main computer are having trouble communicating with each other, meaning you cannot change settings or see the boiler's status correctly.
19 High Your boiler has detected that a temperature sensor has lost physical contact with the internal pipework, meaning it can no longer monitor heat levels correctly.
20 High Your boiler's internal control screen is unable to talk to the main computer, which prevents the heating from turning on.
F High Your boiler is failing to light the gas flame required to provide heating and hot water.
F1 High Your boiler has failed to light because it isn't receiving gas or the spark isn't igniting the fuel.
F2 High Your boiler has stopped working because the fan that removes waste gases is not spinning correctly or has lost power.
F3 High Your boiler has detected a problem with how air and waste gases are moving through the system, causing it to shut down for safety.
F4 High Your boiler has tried to light several times but cannot establish a flame, meaning you will have no heating or hot water until it is fixed.
F5 High Your boiler has shut down because its internal temperature has risen too high, usually due to a lack of water flow or a circulation blockage.
F6 High Your boiler has stopped working because a sensor that monitors the temperature of the water leaving the unit has failed or has a loose connection.
F7 Medium Your boiler's hot water sensor has failed or disconnected, meaning the system can no longer tell how hot the water is.
F8 Medium Your boiler has detected a sensor problem with the small internal tank used to provide instant hot water, which may cause your hot water to stay cold or be inconsistent.
F9 High Your boiler has stopped working because it cannot correctly detect the water pressure, which is usually caused by a faulty internal sensor rather than a leak.
F11 High Your boiler's internal computer has developed a fault and is unable to send the correct signals to start the heating process.
F13 High Your boiler's main internal computer has developed a technical hardware fault and is unable to control the system.
F14 High Your boiler has detected a problem with how it receives its gas supply, which prevents it from lighting safely.
F15 High Your boiler has developed a problem with a motor that controls the gas flow, meaning it cannot ignite safely to provide heat or hot water.
F16 High Your boiler is failing to detect a flame when it tries to fire up, so it has shut down for safety.
F17 High Your boiler is not receiving the correct voltage of electricity, causing it to shut down to protect its internal parts.
F19 High Your boiler has detected that a temperature sensor has come loose from its pipe, preventing it from reading the system's heat correctly.
F20 High Your boiler's internal electronic components are having trouble communicating with each other because the control boards are not compatible or correctly configured.
F21 High Your boiler has lost water pressure and has shut down as a safety precaution to prevent damage.

Glow-worm 30ci Plus 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.

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