Low
7 on Daikin EKOMBG 22

Your boiler is temporarily running a self-protection cycle to prevent internal parts from freezing or to pre-heat water for your comfort.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Heating up exchanger (Frost protection intervenes or tap comfort function is switched on)

From this model's manual
Verified against the Daikin Ekombg 22 Combi 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

Check if the boiler returns to normal operation after a few minutes once the heating cycle completesEnsure the external condensate pipe is not frozen if the weather is extremely coldTurn off the 'Tap Comfort' function in the settings if you do not want the boiler to pre-heat water

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

Avoid the next call-out bill

Monthly cover means no unexpected bills when your boiler breaks down.

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

1View →2View →

Related guides you might find useful

Yellow or orange flame — CO safety

Safety-critical — turn off, read this.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →