BoilerFaultCodes.com

Remeha Avanta 18V Fault Codes

Regular Natural GasLPG 18 kW 2007-2015 Discontinued
GC Number: 41-288-11

Replaced by: Quinta Ace

The fault code is already on your display

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

Most common fault codes

9
Your boiler has temporarily stopped because water is not moving through the system quickly enough, causing it to overheat too fast.
May be DIY safe · £100-£350
b9
Your boiler has shut down because it is heating up much faster than it can circulate water, indicating a blockage or a pump issue.
May be DIY safe · £150-350
code9
Your boiler has switched itself off because an external safety device, such as a thermostat or pressure switch, has detected an issue and broken the electrical circuit.
May be DIY safe · £80-200

All 47 fault codes

Code Severity Plain English
8 Medium Your boiler has paused because the water temperature inside it has risen too quickly, which is usually caused by restricted water flow.
9 High Your boiler has temporarily stopped because water is not moving through the system quickly enough, causing it to overheat too fast.
b5 Low Your boiler has temporarily paused because it has reached the required temperature too quickly and is waiting for the system to cool down before restarting.
b8 Medium Your boiler has temporarily paused because the water inside has become hotter than the temperature it was told to reach, often due to a circulation or sensor issue.
b9 High Your boiler has shut down because it is heating up much faster than it can circulate water, indicating a blockage or a pump issue.
code9 High Your boiler has switched itself off because an external safety device, such as a thermostat or pressure switch, has detected an issue and broken the electrical circuit.
e High Your boiler has lost its internal configuration settings and needs to be reprogrammed to work correctly again.
é0 High Your boiler has detected a problem with its internal temperature sensors, meaning it cannot accurately tell how hot the water is and has shut down as a safety precaution.
E01 High Your boiler has tried to start up but cannot light the gas to create a flame.
E1 High Your boiler has failed to ignite properly and is currently trying to clear its internal system before attempting to start again.
é1 High Your boiler has shut down because the water inside it has become too hot.
E02 High Your boiler has shut down because it has detected an internal temperature that is too high, often caused by a blockage or a pump failure.
E2 High Your boiler is struggling to ignite or keep the flame burning, and it is now trying to clear itself out before attempting to start again.
é2 High Your boiler has detected that water is returning to the unit hotter than when it left, which usually indicates the internal sensors are confused or there is a problem with the way water is circulating.
e3 High Your boiler has detected an electrical safety issue where the power supply is not properly grounded or the internal control board has failed.
E03 High Your boiler has shut down because it detected that the exhaust gases are getting too hot, which is a safety measure to protect the internal components.
é3 High Your boiler has detected an internal electrical problem or a grounding issue that is preventing it from running safely.
e4 High Your boiler has tried to light several times but cannot establish a flame, meaning your heating and hot water will not work.
E04 High Your boiler's internal computer has encountered a critical error and has locked itself out for safety.
é4 High Your boiler has tried to light itself several times but has failed, likely because there is no gas supply or the ignition part is dirty or broken.
e5 High Your boiler has tried to light several times but cannot confirm that a flame has been successfully established.
E05 High Your boiler has stopped working because the internal fan, which safely exhausts gases, is not spinning at the correct speed.
é5 High Your boiler is failing to detect a flame after several attempts, which means it has locked itself out for safety.
e6 High Your boiler detects a flame when it isn't supposed to be running, which is a safety conflict that prevents it from starting up.
E06 High Your boiler is sensing a flame inside the unit even though it hasn't been told to ignite yet, which is causing it to shut down for safety.
é6 Emergency Your boiler has detected a flame when there shouldn't be one, which means it is locking out for safety reasons.
E07 High Your boiler is shutting down because the water is not circulating properly through the system, causing the heat to build up too quickly in one area.
E7 High Your boiler is struggling to ignite or keep a flame going, causing it to shut down for a short safety cooling-down period.
é7 High Your boiler has detected that there is not enough water circulating through the system or the pump has stopped moving the water around.
e8 High Your boiler has detected a problem with the fan that helps remove exhaust gases, which has caused the system to shut down for safety.
E10 High Your boiler has detected that the water pressure is too low for the system to run safely and has shut down as a precaution.
E11 High Your boiler has detected that water is returning much colder than it left, usually because it isn't moving through your radiators properly.
E12 High Your boiler has sensed that the water inside is Getting too hot and has shut itself down as a safety precaution.
E13 High Your boiler has detected that the water coming back from your radiators is too hot, which usually means the water isn't flowing through your heating system properly.
E14 High Your boiler has detected a problem with the internal temperature sensor that monitors the water leaving the unit, causing the system to shut down for safety.
E15 High Your boiler has stopped working because a sensor that monitors the temperature of the water returning to the unit has developed a fault.
E16 High Your boiler has detected an issue with the sensor that monitors exhaust gases, and it has shut down for safety purposes.
E32 High Your boiler has detected an electrical fault with its temperature sensor, which means it cannot accurately monitor the water temperature and has shut down for safety.
E36 High Your boiler started to heat up but the flame unexpectedly went out, causing the system to shut down for safety.
E37 High Your boiler's internal computer has lost its connection with the main control panel, meaning the system can't send or receive the signals needed to heat your home.
E38 High Your boiler has stopped working because its internal temperature sensor that monitors water returning to the unit has developed an electrical fault.
E39 High Your boiler has shut down because a remote safety device or clever external control has sent a signal to stop the system from running.
E40 High Your boiler has detected a problem with the sensor that monitors water pressure, meaning it cannot confirm if there is enough water to run safely.
e43 High Your boiler's internal computer settings have become scrambled or have fallen outside of their safe operating ranges, causing the system to shut down for safety.
e44 High Your boiler has encountered a internal software error where it has failed to verify its own settings and operation parameters.
Er18 High Your boiler has detected an unusual temperature reading or a data processing error and has shut down as a safety precaution.
OT ERROR Medium Your boiler is staying on constantly because a safety sensor thinks the pipes are freezing, causing it to ignore your thermostat controls.

Remeha Avanta 18V 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.