Ferroli air switch hoses, do i need both?

[macshaz]

Evening,
Came home tonight to no hot water, traced the fault to the air switch, which works fine when the positive pressure pipe/hose is disconnected.

PCB switching on vacuum (Red hose).

Is it safe to leave the positive hose (clear) off?

I called the local Corgi bloke, offered to advise over the phone for £50.

Hopefully someone can help as i dont have the £50 atm

thanks

 

[gas4you]

Advice over the phone is usually basic but free

Check hose and fan venturi is clean, anything that is disconnected cannot be doining its job as a safety device. Don't use boiler unless everything is connected and working ok

 

[Agile]

I wish that I got £50 for every time I gave free advice over the phone.

That would have been £200.

NG chap was going to cut all gas to house as hob connection was leaking.

I advised owner to take out oven and turn off hob gas isolator* and then NG man could leave gas on and they would have combi DHW.

He did that but thought that NG fellow could have suggested thet himself!

I will sort out hob tomorrow.

Tony


*** I always advise hob isolater should be accessible to deal with this situation.

 

[macshaz]

Thanks for the advise so far, had a result.....sort of...

spoke to the manufacturer this morning, "apparently" there a part I need to clean...

The red hose (vacuum) is what starts the kit working, but the clear hose turns it off due to over-pressure/ heat etc..

I've found the little fixture they described, fitted just inside the casing, small hole in 1 end allowing air through, but theres nothing inside it???

So planning to buy a new 1 unless anyone can advise better???


Thanks

Marcus

 

[gas4you]

Sounds like they are calling the clear hose a safety device as well. You need to find out why the boiler won't work with this connected first

 

[macshaz]

evening all,

the clear pipe is attached to a venturi inside the outer casing of the boiler, no where near the important components or connected to anything else.

Its allowing free passage of air, which imo shouldn't. As soon as water flows, the pressure drop creates a vacuum which ignites the boiler, which is working fine (red hose). Maybe this unit, if the inside pressure is high enough, counter acts the vacuum and turns the boiler off as a safety feature, which makes sense if the boiler over heats on CH, which currently is disconnected (CHW)?

Having seen the inside of the boiler, all the dust etc, I'm thinking that these venturi have a life span....as a specialist lift engineer, makes sense to me,,,,everyone's thoughts are appreciated...

thanks

M

 

[darrinjones]

Sounds like they are calling the clear hose a safety device as well. You need to find out why the boiler won't work with this connected first

hi i have the exact same problem my boiler would not ignite i took off the clear hose and hey presto all works fine ... did you say i need to clean out something now ?/?

 

[45yearsagasman]

Quote:- Ferroli air switch hoses, do i need both?

No of course you don't need both. The manufacturers just put two on for the fun of it. By removing any factory fitted parts, you are tampering with safety devices and you are obviously out of your depth concerning boiler repairs. Get a pro in for your own safety is the only advice that should be given on the public forum.

 

[DP]

as a specialist lift engineer

Surpised as a 'specialist' you have no money and are looking for advise on safety components for free

My daughter lives in a block where the lift tends to break down. I wonder if you would post your details so I can pick your brains to fix the lift so us in the block do not have to pay the service guy.

 

[Agile]

I would not be too keen to ride in lifts which have had a bodge repair to the safety brakes by an unqualified person!

Think I will take the stairs!

 

[Jordon]

Some users of this forum make me laugh, get a rgi in stop being tight. Can't believe people even have a go at gas related products themselves! As a gas safe engineer myself I hope you can't fix it and if you do hope it all goes bad in the end to teach you a lesson that it's not a give it a go trade. I and others pay loads and work hard to get are qualification and then keep them, I have a gassafe mag every month with idiots that try it themselves and end up either hurt or dead.