Worcester Greenstar 24i - pls help with settings

[Bam]

Some advice greatly appreciated!

We have received a gas bill stating usage is 6 times higher than the same period last year. Not cost, but usage. Nothing has changed about the way we live.

By a process of elimination, we just want to check that the boiler is on the right setting.

It was set to 'once' by the national grid engineer a couple of months ago when a gas leak in the building was fixed. We haven't touched the setting since.

Is this the correct setting to be on? We turn the heating on by using at the separate room thermostat control only - never touching the boiler.

The display settings are, on, off, timed and once. The other settings are self explanatory, but what does 'once' mean? And is this the most efficient?

thankyou in advance.

 

[Roger Welton]

once = on from the first time programmed in the morning until the last at night

 

[lame plumber]

so to save gas it needs to be on timed

 

[erpkid]

When was the gas leak in relation to the charge period?

 

[Roger Welton]

so to save gas it needs to be turned off

Edit for accuracy