Is there an error code for no hot water?

Its a bit strange to have no heating and no hot water with no error code and a functioning display. When you turn on a tap does the green light flash? if yes, then press the “i” button, turn on the tap and record all the “S” codes that are displayed as the boiler goes through its demand sequence.

Why is my central heating system not working?

If your boiler seems to be working and your hot water supply is still functioning, but your central heating is not working, then the problem is either down to the settings on your boiler and central heating system or because a component of the boiler – almost certainly the motorised diverter valve – is broken.

What does it mean when your boiler is working but no hot water?

If your boiler is working but there is no hot water or vice versa, then the issue most likely comes from a faulty diverter valve. It works like a traffic policeman, directing the flow of hot water to either the heating or the taps.

When to call an engineer about no hot water?

If you are not sure how to fix the fault code, it is recommended to contact a qualified engineer for advice. If there is no display on your boiler, this may indicate that the problem is with your power supply – checking to see if you have electricity to your lights and sockets will quickly confirm this.

If your boiler seems to be working and your hot water supply is still functioning, but your central heating is not working, then the problem is either down to the settings on your boiler and central heating system or because a component of the boiler – almost certainly the motorised diverter valve – is broken.

Its a bit strange to have no heating and no hot water with no error code and a functioning display. When you turn on a tap does the green light flash? if yes, then press the “i” button, turn on the tap and record all the “S” codes that are displayed as the boiler goes through its demand sequence.

What does it mean when your boiler has no hot water?

If the heating is on, then there’s a good chance the fault lies with a valve that redirects the cycled water between the central heating and the hot water as it’s needed. It’s called a divertor valve, and it might have got stuck.

Why is my hot water heater not working?

In some cases – such as with broken diverter valves – the hot water will only work when the central heating is fired up, whereas in other cases, the hot water will not work at all. In these situations, the problem will either be with your boiler settings – something you can resolve yourself – or within the internal components of the appliance.