Emergency
F07 on ECA Proteus Premix 24 HCH

Your boiler has automatically shut down because the exhaust gases getting rid of the smoke and fumes have become dangerously hot.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Over Temperature Error for Flue Gas

From this model's manual
Verified against the Eca/Eca Proteus Premix 24 Hch 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 is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer
Search the official register →
Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like F07: 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

F01View →F05View →F06View →

All 28 fault codes on the Proteus Premix 24 HCH

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

E01E02E03E05E08E09E12E15E16E17E18E21E33E35E80E82F13F34F37F39F40F47F50F51F52F53F81

Related guides you might find useful

Gas safety certificate (CP12)

What the check covers, what it costs, and when landlords need one.

Read →

Banging, kettling or whistling noise

Each noise points to a different fault.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →