Potterton Promax SL loud vibration!!!

[Churts]

Hi all.

I have a potterton promax sl boiler, which intermittently makes a really loud vibration/noise that seems to be a problem to diagnose as i cant always reproduce the noise. It won't happen from a cold start on the boiler....only after it's been running for an hour or so....and can go a week with no noise at all.

Does not happen on hot water, only happens on central heating. The noise is from the boiler itself and can be felt by pressing on the casing. I took the main case off while it was happening and the noise seemed to be from the bottom (fan area?).

The noise stops as soon as you turn the heating off, and you can turn the heating back on straight away and it clears.

Any ideas?

 

[mcmoby69]

33 views and no reply.
Try saying please and thank you.
(This is getting weary now)

 

[Churts]

33 views and no reply.
Try saying please and thank you.
(This is getting weary now)

Possibly they didn't know the answer? Just a thought!

However, on a serious note, I forgot the pleases and thank you's and I'm sorry!

 

[cross thread]

probably gas valve out of adjustment needs a gas analayser to check

 

[Churts]

probably gas valve out of adjustment needs a gas analayser to check

Hi gordongas.
Thanks for the reply. Would this cause the while boiler to vibrate violently?

Thanks.

 

[cross thread]

upsets the combustion ratio causing vibration

 

[mcmoby69]

Possibly they didn't know the answer? Just a thought!

However, on a serious note, I forgot the pleases and thank you's and I'm sorry!

One view was mine and I do know!
I forgive you, other posters are not man enough to apologise when it's pointed out to them, they get all arsey!

Anyway . As gordon says, gas valve needs adjusting.
You need a boiler man.

 

[Churts]

Thanks gordongas and mcmoby69. I will get someone out.



Matt

 

[cross thread]

i would go with baxi or b gas on a fixed price repair as it may be the g/valve needs replacing

 

[ianmcd]

SSE are doing a fixed price repair just now at £150 one off payment, if it does need a gas valve you will be quids in, it might just need adjusting though

 

[AGAS]

pretty sure its not the gas valve but you do need a gas engineer for this boiler as upgrades are available but what i would say is things need replacing and cleaning out also , i would get baxi out for this boiler as they know whats needed but would cost more ,or else i suspect you will have a few visits but doesn't matter if you don't work and have time to attend each appointment

 

[JGrimmitt]

Churts - hello, I have had this exact problem, I totally understand what you mean when you cant reproduce the noise as you never know when it is going to do it.

have you managed to get yours sorted yet? I am looking for advice also, before getting a boiler man round.

thanks very much,

 

[Churts]

Churts - hello, I have had this exact problem, I totally understand what you mean when you cant reproduce the noise as you never know when it is going to do it.

have you managed to get yours sorted yet? I am looking for advice also, before getting a boiler man round.

thanks very much,

Hi!

Still not found the answer! It hasn't got any worse....but still does it every few days. I'd love to know the answer if you find out!!!

 

[Churts]

Realised I never added the vid link....

 

[Stu Harrison]

Any chance you’ve found a solution anyone? Is your boiler still doing it? Mine makes exactly the same noise but haven’t a clue what it is