What does H3 mean on a boiler?

What does H3 mean on a boiler?

H3. DHW Thermistor Fault. This means the thermistor that the boiler uses for temperature measurement is not giving correct readings. This can simply mean the boiler needs to be reset. If after reset the error continues, typically you will need to replace the thermistor or sometimes the boiler’s PCB.

How do I reset my ICOS boiler?

Press and hold the reset button for 2 seconds then release. The boiler will repeat the ignition sequence.

What is F3 on Ideal boiler?

F3: Fault with fan This fault is caused by a loose or damaged fan. This issue could be related to deeper problems such as loose or damaged connections, water damage from a boiler leak, a fault with the air pressure switch or a problem with the printed circuit board.

What does C mean on ideal boiler?

When your boiler displays a ‘C’ on the boiler screen and the burner light is also flashing, this means your boiler has reached the programmed temperature. If your house has not met the set temperature and your boiler is showing this it could be caused by a circulation problem in the system.

What does L9 mean on an ideal boiler?

Overheating
L9/H9/HA/LA – Overheating Check the system’s pressure reading, you might also need to bleed your radiators and check if that helps. If it does not, you should contact a Gas Safe registered engineer as overheating could be due to a deeper issue with the boiler’s pump or dry fire stat.

What does C on an Ideal boiler mean?

has a central heating demand
The Ideal boiler status “C” means your boiler has a central heating demand. This issue can be resolved by pressing reset on the boiler – you will not have to turn the boiler off at the wall for this.

What type of boiler is ideal ICOS?

Specification

How do you fix an F3 fault on an Ideal boiler?

If your Ideal boiler is showing F3 on its display screen, this indicates a fault with the unit’s fan. Due to the crucial role the fan plays in ensuring your boiler is running safely, it is highly likely that you will need to call a registered Gas Safe engineer to respond to this fault code.

What does l5 mean on an Ideal boiler?

a problem with the return
This means there is a problem with the return. To reset this turn the boiler off at the wall (fuse spur) for a couple of seconds then back on again. If the boiler fails to operate then please contact Ideal or alternatively a Gas Safe Registered Engineer if outside of the warranty period.

What is ignition lockout?

What does ignition lockout fault mean? When a sensor detects an unsafe condition, the furnace controller will shut off the power and fuel to prevent hazards. This is known as an ignition lockout, a condition that can be caused by a number of different sensors found in your furnace.

What should the water pressure be on an Ideal boiler?

between 1 to 1.5 bars
The ideal boiler pressure should be between 1 to 1.5 bars on your pressure gauge when your heating is switched off. Around 2 bars is a normal pressure level when your boiler is active/heating up. Anything below 0.5 is too low and must be replaced.

What does Status D mean on an Ideal boiler?

has fired up for a hot water demand
When ‘D’ is displayed on your boiler screen it means your boiler has fired up for a hot water demand.

What does L3 mean on a Ideal boiler?

No flow thermistor fault
To fix the Ideal boiler ignition lockout, you might need to reset your boiler. If there is rumbling from the system, your condensate pipe might be blocked or there might be a problem with your flue. This type of fault requires a call to a qualified engineer. L3 – No flow thermistor fault.

What does C mean on a Ideal boiler?

What does it mean when the ‘C’ is displayed on the boiler screen? When ‘C’ is displayed on your boiler screen it means the boiler has a central heating demand. Still need further guidance with your Ideal boiler?

Is ideal ICOS a combi boiler?

Which is the Best Combi Boiler?…Specification.

What causes an ignition lockout?

When the sensors in your HVAC system’s gas furnace detect an unsafe condition during startup, it will force it to shut down to avoid causing any damage. This is known as an ignition lockout, wherein the sensors prevent the furnace from turning on at all.