Baxi Boiler Fault Codes
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From brand new boiler installations to servicing to repairs, Heatwise have experience in all central heating services.
Baxi Boiler Fault Codes
At Heatwise Heating, we know how frustrating it can be when your Baxi boiler fault codes. But don’t worry – we’re here to help you quickly and professionally identify the problem.
Take a look at our guide below to discover the most common Baxi boiler fault codes and what they signify.
Baxi Fault Codes
| E133: | Ignition fault / Gas supply issue |
| E119: | Low water pressure |
| E168: | General fault (often needs reset) |
| E160: | Fan or air pressure switch fault |
| E117: | System pressure too high |
| E125: | Circulation fault (pump or airlock issue) |
If you're still uncertain, reach out to our team today for quick boiler repairs.
Frequently Asked Questions (FAQ’s)
If you have any questions that are not covered below, please don’t hesitate to contact our friendly engineers. Call us on 01132 688570 or email a member of our team at info@heatwiseheating.co.uk.
If your boiler shows a fault code, the first step is to note the code down. Sometimes a simple reset can clear minor errors. However, if the fault persists or you are unsure, it’s safest to contact a Gas Safe registered engineer for diagnosis and repair.
Yes, most Baxi boilers have a reset button, usually located on the front panel. Press and hold the reset button for a few seconds. If the fault code reappears after resetting, it indicates a deeper issue that needs professional attention.
Multiple fault codes could suggest several issues or a communication error within the boiler. It’s important not to ignore this — multiple faults usually require a professional diagnosis to avoid further damage.
It can be! Some codes relate to minor issues, like low pressure, but others (such as flame detection faults) can be serious. If you're unsure or notice strange smells, sounds, or no heat/hot water, switch off your boiler and call a qualified engineer immediately.
We recommend servicing your boiler once a year. Regular servicing helps catch problems early, keeps your boiler running efficiently, and protects your manufacturer's warranty.
If your boiler is still under warranty and has been serviced annually, many fault repairs will be covered. Always check your warranty documentation or ask us at Heatwise Heating for advice.
Yes, extreme cold can sometimes cause issues like frozen condensate pipes, leading to a fault code. Always ensure external pipes are insulated during winter months.
Repeated resets are not recommended. While it may temporarily restore function, it won’t fix the underlying issue and could worsen the problem or damage the boiler.
If a fault code persists after a single reset, or if there are warning signs like unusual noises, smells, or no heat/hot water, call a Gas Safe registered engineer immediately rather than waiting.