Vaillant Ecotec pro Low working gas pressure

[Victor555]

I would like some opinions on this situation.

Vaillant Ecotec pro 28

Installed 2 years ago,

Commissioned Gas pressure reading 16.5mb at max rate.

1st annual service passed.(2018)

Just has second Service all combustion tests passed, and issued a Warning Advice notice of Immediately dangerous (ID) Reason Gas pressure on gas valve 14mbar, min requ 17mb.

Action: New 22mm gas pipe.

Vaillant Boiler installation and maintenance instructions says

Permissible gas flow pressure for operation with
G20 natural gas: 1.3 … 2.3 kPa (13.0 … 23.0 mbar)

Pressure at meter good, was checked by cadent with boiler on and all gas hobs on full.
No reply from original Gas safe installer.

Should I ask a for a second opinion on why it has classed a ID?

Boiler was switched off, but gas was not capped off.

Would it be safe to run boiler ? ( has been working fine, with no faults, good flame)

Question, Approx How much would running new pipe on outside property cost from gas meter to boiler. Metre at front if house, boiler at back of house 1st floor bedroom.

 

[Scott_D]

This thread is full of contradictions

 

[king of pipes]

Valliants are known to loose pressure through the gas valve ask your GSI to install a test point before the gas valve and retest , you should have 21mbar +/- 2mbar at the meter and 20 mbar +/- 2mbar so no lower than 18mbar at this test point on full load . Kop

 

[Harvest Fields]

Valliants are known to loose pressure through the gas valve ask your GSI to install a test point before the gas valve and retest , you should have 21mbar +/- 2mbar at the meter and 20 mbar +/- 2mbar so no lower than 18mbar at this test point on full load . Kop

So what I said

 

[Harvest Fields]

Just busting you b***s mate

 

[king of pipes]

Sorry H didn't see your post mate but great minds bud! I had the same issue on a council contract years back so now fit a test point before the gas valve saves alot of grief . Kop

 

[Old Account]

When he did the annual service did the engineer also open up the burner and brushed through? Has he checked the exp. vessel, flue integrity, has done all the **** ? Seems like he either was lazy and rushed the service or he has not got a clue. As @Last Plumber has mentioned if that all is true you should perhaps write an email.

 

[Victor555]

When he did the annual service did the engineer also open up the burner and brushed through? Has he checked the exp. vessel, flue integrity, has done all the **** ? Seems like he either was lazy and rushed the service or he has not got a clue. As @Last Plumber has mentioned if that all is true you should perhaps write an email.

No, burner was not opened and brushed. exp, vessel was topped up.
**** was done with a print out.
does my gas pipe have a gas test point valve? have attached a photos.

 

[Old Account]

No, burner was not opened and brushed. exp, vessel was topped up.
**** was done with a print out.
does my gas pipe have a gas test point valve? have attached a photos.

View attachment 37941

View attachment 37942

View attachment 37943

View attachment 37944

There is no test point installed as far as I can see. How did he re pressurise the exp.vessel ? Did he drain the boiler ? I do not mean the flue gas analysis I mean **** which are certain things to examine, gas rate, integrity of the flue, supply of combustion air,safety controls, etc...

 

[Victor555]

There is no test point installed as far as I can see. How did he re pressurise the exp.vessel ? Did he drain the boiler ? I do not mean the flue gas analysis I mean **** which are certain things to examine, gas rate, integrity of the flue, supply of combustion air,safety controls, etc...

I am not sure, but this was ticked on the service check list.

 

[Harvest Fields]

Was it Vaillant that Serviced it?

 

[Victor555]

ID

 

[ShaunCorbs]

P1 is the gas valve he hasn’t added his restrictions

14 plus 3.5 of vaillants are 2.5mbar 17.5 working at the gas valve

Low working pressure is not id unless it effects combustion

 

[Last Plumber]

P1 is the Boiler running at Max and he has tested the pressure at the valve. Shaun is right with the drop on a Vaillant in that the pressure will be higher at the appliance inlet than at the valve test nipple. Your Boiler will be three this year and I can't remember when the manual was altered but if you have the one left by the installer and it says 13 mb min, then ask them to come back.

 

[Old Account]

The boiler also has not been cleaned as it should be done annually. He did not open the burner and cleaned and checked the electrodes. I would also say that the gas rate seems dodgy to me meaning I don’t believe he has ever done it. However, I would call them back

 

[Victor555]

Was it Vaillant that Serviced it?

Yes, after a long phone call today, another engineer has been booked for tomorrow.

 

[Harvest Fields]

Yes, after a long phone call today, another engineer has been booked for tomorrow.

I will be surprised if they got it wrong then mate. Don’t be annoyed if they say exactly the same thing.

 

[Scott_D]

The boiler also has not been cleaned as it should be done annually. He did not open the burner and cleaned and checked the electrodes. I would also say that the gas rate seems dodgy to me meaning I don’t believe he has ever done it. However, I would call them back

It’s not required every year

 

[Harvest Fields]

It’s not required every year

You’re supposed to remove and check on annual inspection mate. It is the seal that is not needed every year. I hate to say it but on this occasion I believe he is correct.

 

[sammathias]

4.5mb drop through them gas valves lads. Well that's what vaillant tech once told me

 

[Scott_D]

You’re supposed to remove and check on annual inspection mate. It is the seal that is not needed every year. I hate to say it but on this occasion I believe he is correct.

New seal needed every time the burner is removed?

 

[Harvest Fields]

New seal needed every time the burner is removed?

Only if damaged or worn.

 

[sammathias]

New seal everytime

 

[Harvest Fields]

Not saying it shouldn’t be. Just saying what is in the instructions.

 

[sammathias]

Not saying it shouldn’t be. Just saying what is in the instructions.

In all honesty they don't seem to need to be changed every service but I do for piece of mind. Only £13. Get what your saying tho

 

[Old Account]

It’s not required every year

That’s the reason why boilers last 10-14 years in uk

 

[Old Account]

You’re supposed to remove and check on annual inspection mate. It is the seal that is not needed every year. I hate to say it but on this occasion I believe he is correct.

You don’t need to hate that

 

[Old Account]

Only if damaged or worn.

I replace every year as required. Once you remove the burner you should be using a new seal as well as the sealant which is supplied. Doesn’t cost much to replace the seal

 

[Victor555]

Was re-checked and passed no ID. pressure 15.5mbar