BoilerFaultCodes.com

Chaffoteaux Minima HE Fault Codes

Combi Natural Gas 24-30 kW 2008-2012 Discontinued

Replaced by: Chaffoteaux PIGMA EVO

This boiler uses LED flash patterns

Count the flashes in one repeating group before the pause. That number is your fault code. Do not reset until you have noted it. How to read fault codes →

Most common fault codes

30
Your boiler has detected that water is not moving through the system properly, which is preventing it from heating your home or water safely.
Gas Safe engineer required · £150-350
30 - 40
Your boiler is unable to read the temperature of the water returning to it, so it has safely shut down to prevent overheating.
Gas Safe engineer required · £120-220
30 - 40 - 50 - 60 - 70 - 80
Your boiler is struggling because water is not flowing through the heating system as it should.
May be DIY safe · £120-250

All 64 fault codes

Code Severity Plain English
01 Medium Your boiler has recorded a fault, but this specific code is a generic indicator showing that an error occurred previously rather than describing a specific current problem.
01 to 99 Low Your boiler has recorded a list of previous errors, which is a history log of minor issues or malfunctions that occurred in the past.
05 Low Your boiler is simply protecting itself from freezing by circulating water to keep the system temperature at a safe level.
06 Low Your boiler is automatically warming itself up because it has detected very cold temperatures, which is a normal protective feature to prevent pipes from freezing.
30 High Your boiler has detected that water is not moving through the system properly, which is preventing it from heating your home or water safely.
30 - 40 High Your boiler is unable to read the temperature of the water returning to it, so it has safely shut down to prevent overheating.
30 - 40 - 50 - 60 - 70 - 80 High Your boiler is struggling because water is not flowing through the heating system as it should.
30 40 50 60 70 80 [l m m m m m] High Your boiler's internal computer brain is struggling to talk to its main control unit, meaning the boiler has safely locked itself to prevent incorrect operation.
30 40 50 60 70 80 [m l l l l l] High Your boiler's main control unit is unable to communicate with its display screen, which prevents the system from receiving or processing instructions.
30 40 50 60 70 80 [m l m l l m] High Your boiler is failing to start because it detects a signal indicating that the airflow sensor is stuck in the 'on' position even though the fan has turned off.
30 40 50 60 70 80 [m l m l m l] High Your boiler is struggling to clear exhaust gases before starting, which means it cannot safely ignite.
30 40 50 60 70 80 [m l m l m m] High Your boiler has stopped working because it is experiencing an electrical connection issue or an internal fuse has blown.
30 40 50 60 70 80 [m l m m l m] High Your boiler is failing to light the flame needed to produce heat or hot water.
30 40 50 60 70 80 [m m l l l m] High Your boiler has stopped working because it is unable to accurately measure the temperature of the water used for your heating system.
30 40 50 60 70 80 [m m l l m l] High Your boiler's temperature sensor is failing, which prevents it from knowing how hot the water is and stops your heating from working correctly.
30 40 50 60 70 80 [m m l l m m] High Your boiler is unable to read the temperature of the water returning to it, so it has safely shut down to prevent damage.
30 40 50 60 70 80 [m m l m l l] High Your boiler has lost the ability to read the temperature of the water returning to it, so it has shut down to prevent potential overheating.
30 40 50 60 70 80 [m m l m m m] High Your boiler has detected that water is not flowing properly around your heating system, so it has safely shut down to prevent overheating.
30 40 50 60 70 80 [m m m l l l] High Your boiler has detected that hot water is not flowing properly around your heating system, so it has shut down to prevent damage.
30 40 50 60 70 80 [m m m l l m] Low Your boiler is currently protecting itself from freezing by temporarily running its internal pump and burner.
30 40 50 60 70 80 [m m m l m l] Low Your boiler has detected very cold temperatures and is circulating water through the system to prevent freezing.
30 40 50 60 70 80 [m m m m l l] High Your boiler is failing to light the internal burner, so it has safely shut itself down to prevent gas from building up.
30 40 50 60 70 80 [m m m m m l] High Your boiler has detected that it is running too hot and has automatically switched itself off to prevent potential damage.
40 - 50 - 60 - 70 - 80 Low Your boiler has detected very low temperatures and is running its internal systems to prevent the pipes from freezing.
40, 60 and 80 flash Emergency Your boiler has detected an issue with its exhaust system and has shut down to prevent harmful fumes from building up inside your home.
50 - 60 - 70 - 80 Low Your boiler is simply protecting its internal pipes from freezing by keeping the water circulating, which is a normal winter operation.
60 - 70 - 80 High Your boiler is failing to light the internal flame needed to heat your water, which means it has safely shut itself down to prevent a gas buildup.
70 - 80 High Your boiler has detected that it is running too hot and has automatically switched itself off to prevent any damage or safety hazards.
A 01 High Your boiler has detected that it is running too hot and has automatically shut itself down to prevent damage.
A 03 High Your boiler has failed to light the flame after several attempts and has switched itself off to prevent a gas buildup.
A 36 Emergency Your boiler has detected that the exhaust gases are becoming dangerously hot, so it has shut itself down to prevent damage or overheating.
A 37 High Your boiler's internal computer is experiencing a communication error, meaning it has safely shut itself down to prevent unpredictable operation.
A 39 High Your boiler's main internal computer has encountered a serious internal error and cannot operate safely.
A 40 High Your boiler's main internal computer is experiencing a critical error, which has caused the system to shut down for safety reasons.
A 41 High Your boiler is failing to clear combustion gases properly because the internal fan is not operating as it should.
E 02 High Your boiler has stopped working because the water pressure inside the heating system has dropped too low.
E 04 High Your boiler is failing to light the flame needed to heat your home's water, so it has stopped working for safety reasons.
E 05 Low Your boiler has detected that temperatures inside are very low and is running its pump to prevent the internal water from freezing.
E 06 Low Your boiler has automatically triggered its frost protection mode because the internal temperature has dropped too low.
E 07 High Your boiler is struggling because water is not flowing around your heating system properly to distribute warmth.
E 08 High Your boiler has detected that the water pressure inside the heating system is too low to operate safely.
E 09 High Your boiler has lost the signal from the sensor that monitors the temperature of your hot water, which means it will likely stop heating your water until the connection is restored.
E 10 High Your boiler is having trouble sensing the temperature of your hot water supply, which means it will likely stop producing hot water until the faulty sensor is replaced.
E 11 High Your boiler is struggling to detect the flow of water through the system, meaning it cannot safely turn on to provide your heating or hot water.
E 12 High Your boiler is unable to read the water flow correctly because it has detected an electrical connection error with one of its internal sensors.
E 13 High Your boiler has lost the signal from one of its internal temperature sensors, which is causing it to stop heating your home as a safety precaution.
E 14 High Your boiler has stopped working because it is unable to accurately read the temperature of the water returning to it, as a temperature sensor has developed a faulty electrical connection.
E 15 Low Your boiler is struggling to detect the outside temperature because the connection to the external weather sensor is disconnected or faulty.
E 16 Low Your boiler is having trouble communicating with the external weather sensor on the outside of your property, causing it to lose track of the outdoor temperature.
E 18 High Your boiler is struggling to keep the burner flame stable, which is preventing it from staying lit to heat your home.
E 20 Emergency Your boiler has detected heat or fire inside when the gas supply should be turned off, which indicates a serious safety error.
E 22 Emergency Your boiler is unable to safely vent exhaust gases, so it has stopped working to prevent any risk of fumes entering your home.
E 23 Emergency Your boiler's fan is not spinning fast enough to clear waste gases safely, so the system has shut down to prevent a safety hazard.
E 25 High Your boiler is struggling to detect the temperature of your hot water supply because a connection to its internal heat sensor has been lost.
E 26 High Your boiler is having trouble communicating with the probe that measures the temperature of your hot water storage tank, which will likely prevent your hot water from heating up properly.
E 27 High Your boiler is having difficulty communicating with its hot water storage tank, which means your heating or hot water system has likely stopped working correctly.
E 29 Medium Your boiler has lost the connection to the temperature sensor inside your home, so it currently does not know whether your rooms are warm or cold.
E 34 High Your boiler has identified a broken connection or faulty sensor in the vent system meant to carry waste gases away, so it has safely shut down to prevent unsafe operation.
E 35 Emergency Your boiler has detected an issue with the sensor that monitors the exhaust system, meaning it has safely shut down to prevent any risk of fumes entering your home.
E 36 Emergency Your boiler has detected that the exhaust gases leaving the flue are getting dangerously hot, so it has shut itself down to prevent damage or safety hazards.
E 37 High Your boiler has lost the ability for its internal computer parts to 'talk' to each other, meaning it has shut down as a precaution to prevent unpredictable operation.
E 38 Medium Your boiler has been manually reset too many times in a short period, so it has locked itself for safety to prevent damage.
E30 High Your boiler is struggling to read the temperature correctly because a connection in its internal sensing system has developed a fault.
E33 Medium Your boiler has detected that the external temperature sensor for your underfloor heating system is not sending a signal, which is preventing the boiler from firing.

Chaffoteaux Minima HE 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.