Why is my boiler clicking but not lighting?

That click is usually the spark generator trying to light the gas. If it doesn’t fire up, it suggests the spark isn't working, the gas isn't arriving at the burner, or the flame sensor isn't detecting the flame and is shutting the boiler down for safety.

Can low pressure stop a boiler firing up?

Yes, absolutely. It's one of the most common causes. Most boilers have a safety cut-out that prevents them from running with pressure below 1 bar to protect internal components.

Is it safe to keep resetting my boiler?

No. Resetting it once is fine to clear a temporary glitch. If it locks out again, there is an underlying fault. Continuously resetting it can cause further damage or mask a potentially dangerous situation.

Can I fix a boiler ignition fault myself?

You can perform initial checks like power, thermostat settings, and pressure. However, any repair that involves opening the boiler casing to access the ignition leads, gas valve, or burner must be done by a Gas Safe registered engineer.

When is a boiler not firing up an emergency?

It becomes an emergency if you see signs of it being unsafe. If you smell gas, see black soot marks on or around the boiler, or the pilot light flame (on older boilers) is floppy and yellow instead of crisp and blue, you should treat it as an emergency.

How long does an ignition repair usually take?

A simple fault can often be diagnosed and fixed within an hour. If a specific part, like a new fan or gas valve, is required and not carried in the engineer's van stock, a return visit will be needed once the part arrives.