Medium
50 on Baxi EcoBlue

Your boiler has temporarily stopped working because it cannot accurately read how hot the water is inside the system.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Faulty temperature sensor

From this model's manual
Verified against the Baxi/Baxi Ecoblue Plus Combi Erp installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer
Search the official register →

Avoid the next call-out bill

A cover plan would handle faults like 50: no call-out fees, no surprise bills.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

Related fault codes

All 24 fault codes on the EcoBlue

Seeing a different code? Every code this model can display, in one place.

Related guides you might find useful