The Baxi E168 fault code is a general fault that tells you the boiler has detected a problem but cannot identify a single cause. It often appears after another fault has been cleared or when there is an electrical or internal component issue.
- Content Guide
- » What Does the Baxi E168 Fault Code Mean?
- » What Causes the Baxi E168 Fault Code?
- - Previous boiler fault codes
- - Mains power supply problems
- - Faulty boiler components
- - PCB failure
- » How to Deal with a Baxi E168 Fault
- » When to Call a Gas Safe Engineer
- » Need Help with a Baxi E168 Fault?
What Does the Baxi E168 Fault Code Mean?
Unlike many Baxi error codes, E168 does not identify one failed part. Instead, it indicates that the boiler has logged a fault but cannot display the original cause.
The issue may relate to a previous fault, the electrical supply or an internal component. Leaving it unresolved can eventually lead to a complete boiler shutdown.
What Causes the Baxi E168 Fault Code?
Previous boiler fault codes
E168 often follows another fault such as E119, E125, E133 or E156. If another code appeared first, diagnosing that fault usually leads to the correct repair.
Mains power supply problems
An unstable mains supply can trigger the fault. Because voltage fluctuations are often intermittent, they usually require proper electrical testing.
Faulty boiler components
A faulty gas valve, fan, pump, electrode, wiring harness or diverter valve can all contribute to an E168 fault. These components should only be tested and replaced by a Gas Safe engineer.
PCB failure
The printed circuit board controls every major boiler function. If it develops a fault, it can produce incorrect readings and trigger the E168 error. PCB replacement is a specialist repair.
How to Deal with a Baxi E168 Fault
Before arranging a repair:
- Check whether another fault code appeared before E168.
- Avoid repeatedly resetting the boiler.
- If you suspect a power supply issue, have it checked by a qualified electrician.
- Arrange a professional inspection if the fault remains.
If you're seeing a different fault or want to understand other error messages, see our guide to Baxi boiler fault codes
When to Call a Gas Safe Engineer
If the E168 fault keeps returning, professional diagnosis is the safest option.
A Gas Safe engineer can identify whether the problem is caused by an electrical issue, a failed component or the PCB.
If your boiler continues displaying the E168 fault, arrange a professional boiler repair in London with one of our Gas Safe engineers.
Need Help with a Baxi E168 Fault?
If your boiler keeps showing the E168 fault code, don't keep resetting it. Book a Gas Safe engineer to identify the underlying fault and carry out the repair safely.
