Error code E168 is displayed when the boiler has detected a problem but can’t work out exactly what it is. This can happen if the boiler has reset after developing a fault or if there has been an issue externally which affects the boiler, such as a fault with the electrical supply.
If the boiler has reset, it may have been displaying a different error code before showing E168. Making a note of any error codes you see will be extremely helpful to any installer trying to rectify the issue.
When is this code likely to appear?
Commonly, E168 appears for one of the following two reasons:
1. The boiler has detected a problem and has then been reset
Sometimes when error code E168 is displayed, the boiler will 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 specific problems with the boiler and can be fixed with relative ease by a Gas Safe registered engineer. In this situation, E168 appears because the boiler has reset. This is triggered either by a person using the boiler controls or by a computer programme automatically running in the boiler system. A reset makes the boiler forget that it has a problem until it tries and fails to start up. Sometimes, when this happens, the boiler then can’t detect the exact problem as it did before, so it displays E168. See below for more detail about what you should do if E168 is displayed.
2. 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 isn’t available or becomes interrupted, then the boiler is likely to fail. When this happens, E168 appears because the boiler detects that it isn’t working properly but is not able to detect any faulty parts, as there aren’t any.
What should I do if an error code such as E168 appears on my boiler?
If your boiler is displaying an error code, it needs attention. As a result, it’s recommended that you call your local Gas Safe registered installer to come out and take a look. If you can, call the installer who originally fitted your boiler, as they should already be familiar with the workings of your central heating system. Especially if you are around Stourbridge, there are plumbers in Stourbridge who also fix boilers.
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