Ideal Logic gas valve fault

[Nico]

Hi guys came across a strange one today and was wondering if anyone could shed some light cheers.

Had a report of noise coming from boiler. Arrived on site and found when gas valve modulated to minimum rate it the diaphragm would vibrate and sounded like the titanic was arriving through the front door. Changed out the gas valve but has same issue with new gas valve. On minimum rate I was get 21mbar at test point. Check Venturi which was clean and check burner for debris. Tried a fan to see is the gas/air ratio wasn’t mixing correctly but still had same issue.

Anyone had anything similar before?

Cheers for getting back to me

 

[Riley]

If you’re gas safe contact a mod and they’ll let you in the gas safe section

 

[Nico]

Sorry just new to this forum so still tryin to figure out how to work it

 

[Riley]

That's cool no worries Shaun will likely be along soon he can help you out

 

[Nico]

Much appreciated mate. Thanks for the help

 

[ShaunCorbs]

hello

 

[Nico]

Hi Shaun,

I am new to this forum and have posted on this public section not knowing there was a private GSR section. How is it you go about being accepted into that section?

Cheers

 

[ShaunCorbs]

Hi Shaun,

I am new to this forum and have posted on this public section not knowing there was a private GSR section. How is it you go about being accepted into that section?

Cheers

send us your gas safe reg no and i will sort it

 

[Lewis Lawson]

Copper sulphate on the venture connected to the fan clean it thoroughly and reattach

To be clear I’m a training gas engineer and have done this exact thing to resolve this issue on many ideal logics. If it’s under warrenty ideal come out and replace the whole gas valve

 

[Lewis Lawson]

Hi guys came across a strange one today and was wondering if anyone could shed some light cheers.

Had a report of noise coming from boiler. Arrived on site and found when gas valve modulated to minimum rate it the diaphragm would vibrate and sounded like the titanic was arriving through the front door. Changed out the gas valve but has same issue with new gas valve. On minimum rate I was get 21mbar at test point. Check Venturi which was clean and check burner for debris. Tried a fan to see is the gas/air ratio wasn’t mixing correctly but still had same issue.

Anyone had anything similar before?

Cheers for getting back to me

-Read my last comment -

 

[townfanjon]

Copper sulphate on the venture connected to the fan clean it thoroughly and reattach

To be clear I’m a training gas engineer and have done this exact thing to resolve this issue on many ideal logics. If it’s under warrenty ideal come out and replace the whole gas valve

Yep this seams to be a bit of a logic “trait” horrendous noise lol

 

[ShaunCorbs]

Yep this seams to be a bit of a logic “trait” horrendous noise lol

Won't be able to see it now moved to gsr

 

[clarky101]

Had this with a brand new heat only Logic Max, Ideal came out twice to it & I was told “a few problems with injectors on these”.......

 

[spikewt]

Just to jump in on this. I've had a few now that rumble to flame loss on minimum and it can be a number of different things causing the same problem.
They all lead to getting the gas air mixture exactly right on minimum. There seems to be zero tolerance.
Go for the injector first, clean both inside and out, make it shine again.
Then remove and clean the funnel it attaches too.
Air dust the fan and then the burner.
Pour water into the heat exchanger.
These steps usually cure it.

 

[Nico]

Just to jump in on this. I've had a few now that rumble to flame loss on minimum and it can be a number of different things causing the same problem.
They all lead to getting the gas air mixture exactly right on minimum. There seems to be zero tolerance.
Go for the injector first, clean both inside and out, make it shine again.
Then remove and clean the funnel it attaches too.
Air dust the fan and then the burner.
Pour water into the heat exchanger.
These steps usually cure it.

Cheers mate appreciate the advise will go through this sequence next one I come across a similar issue