Water pressure too low.
Re-pressurise to 1–1.5 bar using the filling loop, then reset.
Fault code finder
Baxi boiler fault codes.
Baxi boilers show an E code, often with a flashing symbol. Here’s what the most common ones mean, and what to do about each.
Safe to try
Gas supply interrupted or ignition failure.
Check gas is reaching the boiler (hob, meter, prepay credit) and the condensate pipe isn’t frozen. Reset once.
Primary circulation fault: water isn’t flowing properly.
Check radiator valves are open and pressure is OK. A recurring code usually means a pump issue.
Fan fault.
This needs a Gas Safe engineer.
Codes vary between Baxi models, so check your manual. Reset once only, and never remove the casing.
Other brands
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FAQs
Baxi codes: your questions.
Can’t see your question? Our friendly office team is on hand Mon–Fri 8–5 and Sat 9–12.
What does Baxi fault code E119 mean?
Water pressure too low. Re-pressurise to 1–1.5 bar using the filling loop, then reset.
What does Baxi fault code E133 mean?
Gas supply interrupted or ignition failure. Check gas is reaching the boiler (hob, meter, prepay credit) and the condensate pipe isn’t frozen. Reset once.
What does Baxi fault code E125 mean?
Primary circulation fault: water isn’t flowing properly. Check radiator valves are open and pressure is OK. A recurring code usually means a pump issue.
What does Baxi fault code E160 mean?
Fan fault. This needs a Gas Safe engineer.
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