Unknown
L5 Or F5 on Ideal EXCLUSIVE2

Ideal EXCLUSIVE2 fault code L5 Or F5

What the manual says

Manufacturer manual

Return Thermistor Fault

From this model's manual
Verified against the Ideal/Ideal Idealie Qsg 236285 Ideal Exclusive2 Install Guide Pdf 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 L5 Or F5: 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.

All 30 fault codes on the EXCLUSIVE2

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

Related guides you might find useful