Baxi E168 fault code
Estimated reading time: 3 minutes
What is E168 fault code on Baxi boiler?
The Baxi E168 fault code could mean a few different things are wrong. Usually, Baxi E168 error code points to one of four possible issues. The first two problems are the most common, so it’s a good idea to check those first.
Here are the four possible issues that could cause the Baxi E168 fault code:
1. Previous Error Codes
If your boiler showed other error codes before displaying Baxi E168 fault code, this might be the reason. The boiler could have detected a problem and shown an error code related to it. After resetting—either automatically or by you—the boiler might not find the original problem anymore, so it displays E168 instead. Some of the codes that might appear before E168 include:
E20: Boiler temperature sensor issue
E28: Flue gas temperature sensor issue
E50: Hot water temperature sensor issue
E110: Overheat thermostat triggered
E119: Low water pressure in the system
E125: Boiler temperature exceeded due to circulation problems
E130: Flue gas temperature exceeded
E131: Power was cut off during an E125 or E130 fault
E133: Flame didn’t ignite in time, possibly due to gas supply or flue issues
E156: The boiler received lower voltage than needed
E160: Fan system problem
If you saw any of these codes before E168, focus on fixing those issues first
2. Mains Power Supply Issues
The Baxi E168 fault code might also appear if your boiler has been receiving an unstable power supply. The voltage could be either too high or too low, outside the acceptable range of 230V ± 10%. This can be tricky to spot because it might only happen at certain times. You can check the power supply yourself or ask an electrician to help. If there’s an issue, get advice from your electricity provider.
3. Faulty Boiler Components could cause E168 fault code
If the first two checks don’t fix the problem, some boiler parts might not be working properly. Check these components to see if they have any issues or signs of water damage:
Gas Valve
Spark Igniter
Electrodes (check the gap and connections)
Pump
Fan
Wiring harness and connections
Diverter Valve (could be sticking or have motor issues)
Any of these parts could cause the Baxi E168 fault, even if they don’t trigger another error code. If you find a fault, replace the faulty part.
4. PCB (Printed Circuit Board) Issue
If you’ve tried everything else and the E168 fault code still appears, the problem might be with the PCB. In this case, you’ll need to replace the entire PCB unit and then test the boiler to see if the problem is resolved.
Conclusion
This is the essential information you need to understand the Baxi E168 fault code. However, we strongly recommend that you contact a Gas Safe engineer to handle the issue for you. They have the expertise to safely and effectively fix the problem, ensuring your boiler runs smoothly and safely.