Ideal Logic Boiler L2 Fault – Error Code Guide

If the L2 fault code is showing on your boiler’s display, you will need to take action before your boiler will function again. It is rare that this fault means that your boiler needs to be replaced, but if the problem lies within the boiler unit you will need to instruct a Gas Safe engineer … Read more

Ideal Boiler F1 Fault – Error Code Guide

Seeing an error code appear on your Ideal boiler can give you a sense of dread, especially when you are worried that you may have to replace it. However, if it is the F1 error code, then there may be a simple solution. Rather than ignoring the issue and ending up with a huge repair … Read more

Vaillant Boiler F84 Fault – Error Code Guide

The Vaillant F84 error code affects the ecoTec plus models of Vaillant boiler. The F84 error code means that the boiler has detected a permanent temperature difference between the flow and return pipes. This can be caused by wrongly installed or calibrated thermistors, water damage and leaks or faulty wiring. You won’t be able to … Read more

Vaillant Boiler F83 Fault – Error Code Guide

The Vaillant F83 error code affects the ecoTec plus models of Vaillant boiler. The F83 error code means that the boiler has detected an incorrect temperature change in the flow and return pipes after the boiler is lit. This can have several causes, commonly incorrectly calibrated thermistors or faulty wiring. Low pressure can contribute, which … Read more

Vaillant Boiler F76 Fault – Error Code Guide

The Vaillant F76 error code affects the EcoTec plus models of Vaillant boiler, and is a serious error code which signifies a possible dangerous boiler breakdown. At the least, parts and wiring will need to be repaired or replaced and it is likely that you will need to buy a new heat exchanger or new … Read more

Vaillant Boiler F75 Fault – Error Code Guide

The F75 error code affects the Vaillant EcoTec models )except the ectoTec heat-only). It signifies a problem with the pressure in the boiler, and can be caused by blockages in the pump or sensor, faulty parts which need replacing, or an incorrectly pressurised expansion vessel. Faulty or blocked parts will need to be dealth with … Read more