Medium
F 0t on Ideal i-mini2 C24

Your boiler has lost communication with its wall-mounted temperature control, meaning it doesn't know when to turn your heating on or off.

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

Room Thermostat Fault: Check Room Stat & connections

From this model's manual
Verified against the Ideal I Mini2 C24 installation & service manual, page 52.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check and replace the batteries in your wall-mounted room thermostatEnsure the thermostat is turned up higher than the current room temperatureCheck the wireless receiver on the boiler for any red lights and try the 'pair' button if applicable

Find a Gas Safe engineer
Search the official register →

Avoid the next call-out bill

A cover plan would handle faults like F 0t: 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

Related guides you might find useful