Boilers are such an important machine in many homes, but like any machine, they can experience issues. One such common problem is the E168 Baxi fault code.
Homeowners, landlords, and even some HVAC engineers might have faced this error. This E168 Baxi fault often leaves us wondering about its cause and resolution.
If you're currently encountering this issue, this blog will help answer your questions, explain potential fixes, and highlight why consulting professionals is essential.
What Is the E168 Baxi Fault Code?
The E168 boiler code is one of the less common error notifications on Baxi boilers but is often an indicator that something more complex is wrong.
It might relate to electrical components, previous faults, or even an unstable power supply.
It's important to address this error promptly to ensure your boiler operates efficiently and safely. Neglecting the problem could lead to more severe complications, such as a complete system breakdown.
Always get expertise from a professional boiler repair service near you.
What Causes the E168 Baxi Fault Code?
There are four primary reasons why the E168 Baxi fault code might appear. Below, we'll break them down to help you understand the issue better.
1. Previous Error Codes
Before displaying an E168 error, the boiler might have shown another error code that indicates the root problem. For instance, error codes like Baxi E20 fault (temperature sensor issue) or E119 (low water pressure) might appear first.
After resetting the boiler, either automatically or manually, the system sometimes fails to find the original fault and defaults to E168 instead. The original issue becomes disguised under this generic code.
Here are some example fault codes that might lead to E168:
- E20 – Boiler temperature sensor fault
- E125 – Circulation problem causing overheating
- E133 – Failure to ignite the flame
- E156 – Low voltage problem
and more.
If the boiler showed other codes, it's worth investigating those first, as fixing the underlying problem could eliminate the E168 fault.
2. Mains Power Supply Issues
Another common reason for the E168 boiler code is an unstable power supply.
Power fluctuations are tricky to identify, as they can occur intermittently, making it hard to pinpoint without specialist equipment.
What to do:
- Use a voltage meter to measure the power supply.
- If you suspect power supply issues, consult an electrician or contact your electricity provider for advice.
3. Faulty Boiler Components
Sometimes, the E168 code is a sign that one or more boiler components are malfunctioning. This often happens because of wear and tear or water damage.
Key parts to consider include:
- Gas Valve – Controls gas flow into the boiler.
- Electrodes – Essential for igniting the flame.
- Pump – Circulates water within the system.
- Fan – Supports proper combustion by maintaining airflow.
- Wiring Harness – Ensures electrical connections remain secure.
- Diverter Valve – Often prone to sticking or motor problems.
Each of these faulty components has the potential to trigger an E168 boiler fault without showing any additional faults. If the parts seem compromised, they may need repair or replacement.
4. PCB (Printed Circuit Board) Failure
The Printed Circuit Board (PCB) is the brain of your boiler. It controls all the operational commands and ensures collaboration between different components.
Unfortunately, fixing such an issue usually involves replacing the entire PCB, which can be costly. As a homeowner, do not forget to perform your annual boiler service for a long-lasting boiler lifespan.
How to Solve the E168 Fault Code?
When your boiler shows an E168 Baxi fault code, we strongly recommend avoiding DIY repairs. Boilers are sensitive and potentially dangerous appliances if they are not repaired well. That's why boiler repair demands the expertise of a qualified professional.
However, here are some general steps you can take:
Check for Previous Error CodesIf the E168 fault followed another error code (e.g., E119 for low water pressure), then focus on resolving the initial problem. If you try to reset the boiler without fixing the root cause, it might temporarily clear the issue but won't provide a long-term solution.
Read our boiler error codes blog section to gain more knowledge about boilers.
Use a multimeter to check the mains supply voltage. Any fluctuations should be resolved by consulting a certified electrician.
Examine Boiler ComponentsA trained Gas heating engineer can check for component faults like damaged wiring, a malfunctioning pump, or a broken fan. Identifying and replacing damaged parts is a good way to resolve the issue.
Replace the PCB
If all else fails, the PCB might need replacement. Be aware that this is a complex operation best handled by a professional and may come with higher costs.
Why Call Serviceteam Professionals?
At Serviceteam, we understand the inconvenience and stress a boiler fault can cause—especially during cold months. That's why we're here to provide a reliable, expert-driven solution to your boiler issues.
Here's why you should choose our services:
- Gas Safe Engineers
Our serviceteam Gas heating engineers have a proven track record of serving and resolving boiler faults safely and efficiently in London. - Expert Diagnosis
With years of heating expertise, we can quickly diagnose the underlying reason behind the E168 code. - Competitive Pricing
We offer transparent pricing for repairs and replacements, ensuring you're never hit with hidden charges. - Serviceteam Club Membership
As a serviceteam club member, you enjoy exclusive discounts on all our services.
Contact us today!
If your boiler is showing the E168 Baxi fault code, don't wait for the problem to escalate. Call us now or book a certified engineer online. Together, we'll have your boiler back to peak condition in no time.
