About error code E168

If you are an installer looking for information about error code E168 please consult our installer information.

What does error code E168 mean?

If error code E168 is being displayed on your boiler it means that the boiler has detected a problem but can't work out exactly what it is. This could be because the boiler has been reset after developing a fault or because there has been an external issue, such as a fault with the electrical supply.

If the boiler has reset, it might have been displaying a different error code before resetting. Making a note of any error codes you see is extremely helpful to any installer trying to rectify the issue.

Will this code appear on my boiler?

The boilers that could report an E168 error are:

  • Potterton Heatmax Combi HE
  • Potterton Promax Combi HE Plus
  • Potterton Promax System HE Plus
  • Potterton Promax System HE Plus A
  • Potterton Gold Combi HE
  • Potterton Gold Combi HE A
  • Potterton Gold System HE
  • Potterton Gold System HE A

When is this code likely to appear?

Commonly, E168 appears for one of the following two reasons.

The boiler has detected a problem and has then been reset

It is possible that E168 is not the first error code your boiler has displayed since developing a problem; it may have been reporting one of the following error codes beforehand.

E20, E28, E50, E110, E119, E125, E130, E131, E133, E156, E160

These error codes all reference different problems with the boiler and can be fixed by a Gas Safe registered engineer. E168 is appearing because the boiler has been reset, triggered either by a person using the boiler controls or by a computer program automatically running in the boiler system. This makes the boiler forget that it has a problem until it tries and fails to start up again, when it does it can't detect the exact problem as it did before, so displays E168. See below for more detail about what you should do if E168 is displayed.

The electricity supply to the boiler has been interrupted

Boilers need a constant, reliable and regular supply of mains electricity to work properly. If this is interrupted, the boiler is likely to fail. In this case, E168 appears because the boiler detects that it isn't working properly, but as all the parts inside the boiler are working, it can't detect any specific issue.

What should I do if an error code such as E168 appears on my boiler?

Any time your boiler is displaying an error code it is worth calling a Gas Safe registered installer to come out and take a look at it. Calling your original installer is often a good idea as they are already familiar with the workings of your central heating system.

To find the contact details of either your or another local installer, use our 'Find an Installer' tool.

If a local installer isn't available then heateam, Potterton's servicing division, are always happy to help. We're available for call-outs all year around and because we're part of the company that made your boiler, we're experts when it comes to knowing how it works!

To speak to heateam, call 0844 335 2266. Even better, to organise for heateam to visit your home, visit the heateam website and fill in their online form. Once you book, we'll be over as soon as we can.

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