New smart water meter - boiler not working?

WIAWSNB

Try a reset as FreeBear says.
Open the water meter lid and have a good sniff.

Y_am_I_Here

Have you checked the pressure of the boiler? Could the water pressure gave dropped during the water meter swop 

YellowLlama

Thanks all! 

Pressure is good (we do have to top it up occasionally but it’s on 1.1 and happy)

Tried off and on again, same error. 

Yorkshire water sent someone over yesterday evening but he said it needs a gas engineer which they’re (hopefully) going to arrange today. 

He didn’t seem to think gas supply damage was likely, and said it might be an unrelated boiler fault, but he agreed it seems very odd timing to be coincidental. For now, water company seem to be taking responsibility. 

WIAWSNB

Keep us updated, please.

Bigphil1474

Turning the mains water off will have zero effect on the pressure of your combi boiler. It's a closed system. Turning the water off will prevent you topping up the pressure, but won't affect the current pressure. Suggesting otherwise is liking saying flushing your toilet empties your radiators. 

Ayr_Rage

It does seem odd that both the boiler and gas fire seem not to have a supply.

You could try turning the gas lever to off at the meter and then releasing the gas pressure in the home by trying to light the fire.

Then close that valve at the fire.

Stand by the gas meter, turn the gas back to on and see if you can hear any rush of gas back into the system.

Mine certainly makes a small noise if the internal pressure has been released due to work on the boiler or hob.

Section62

YellowLlama said:

Thanks all! 

Pressure is good (we do have to top it up occasionally but it’s on 1.1 and happy)

Tried off and on again, same error. 

Yorkshire water sent someone over yesterday evening but he said it needs a gas engineer which they’re (hopefully) going to arrange today. 

He didn’t seem to think gas supply damage was likely, and said it might be an unrelated boiler fault, but he agreed it seems very odd timing to be coincidental. For now, water company seem to be taking responsibility. 

I had a water meter change last year.  I'd had very low water pressure since first having a meter several years ago and this time the fitter agreed the flow/pressure at the kitchen tap was really poor given the fountain they'd got in the street when flushing the new pipework.  He called another team who turned up late evening and replaced the internal stopvalve - their sole job was going round fixing issues with jobs the meter fitters had done that day, they said it was common for new and apparently unrelated faults to come to light when the water is turned off to allow the meter fitting.

In your case it could be something like the loss of pressure affecting a pressure sensing component, or perhaps debris getting into the supply pipe blocking something.

Let the water company do some investigating, the odds are there is some linkage betwen the work and the fault.

The gas fire not working could be a red herring - if it is unsafe to use then the supply to it should be capped, or at least isolated.  If that has been done it would explain having no gas flow to the fire, and if it hasn't been done then you should consider getting someone in to do it.  If the engineer coming today is friendly it might be worth asking them to have a look.

Section62

Bigphil1474 said:

Turning the mains water off will have zero effect on the pressure of your combi boiler. It's a closed system. Turning the water off will prevent you topping up the pressure, but won't affect the current pressure. Suggesting otherwise is liking saying flushing your toilet empties your radiators. 

It isn't beyond impossible.  It is only a closed system if the filling loop valves are closed and the check valve (if fitted) is functional.

Otherwise the loss of pressure on the supply side could make it possible for some leakage out of the system into the supply pipe.

Obviously letting radiatior water get into your potable water system isn't ideal, which is why the filling loop should have a double check valve and the filling valves should be left in the closed position when not in use.  Just in case.

jefaz07

Ayr_Rage said:

It does seem odd that both the boiler and gas fire seem not to have a supply.

You could try turning the gas lever to off at the meter and then releasing the gas pressure in the home by trying to light the fire.

Then close that valve at the fire.

Stand by the gas meter, turn the gas back to on and see if you can hear any rush of gas back into the system.

Mine certainly makes a small noise if the internal pressure has been released due to work on the boiler or hob.

Not really. The OP said the flue was leaking, so I’d wager the fire has been disconnected. 

Ayr_Rage

@jefaz07 the OP has said they had tried the fire but was unsure if it was due to lack of a gas supply or another fault.

If it was dangerous to use, along with the gas supply being removed I would expect it to have been stickered by the engineer who examined it, that hasn't been mentioned.

Hopefully we'll know later today where the issue lies.