Low
STANDBY on Ideal Concord Cxdi

Your boiler is currently switched off or in a waiting mode and is not actively heating your home.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Observe display. Press [O/1] button.

From this model's manual
Verified against the Ideal Concord Cxdi 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.

DIY fix possible

Locate the [O/1] button on the boiler control panel.Press the button to toggle the system out of standby mode.Wait a few moments for the boiler to cycle through its startup sequence.

Find a Gas Safe engineer
Search the official register →

Avoid the next call-out bill

A cover plan would handle faults like STANDBY: 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 guides you might find useful