Temperature pressure relief valve dripping

ThisIsWeird

It's a toughie - in effect, a gamble.
If a local G3 comes out and finds your EV just needs air, then the whole job could be sorted pretty quickly, and cost - ooh - £100 or so? So under half the F-P repair.
If the EV is kaput, stick £60+ on that. Dripping valve? £30+. Corrosion on the tank? £1k! So F-P is a bargain!
How old is the Stelflow? 

housebuyer143

Lulu58 said:

housebuyer143 said:

If you call megaflow they will come and repair it and they have a scheme where they guarantee to fix it for £250 (this is what I did last year) or of it can't be fixed they refund the £250. I got a free tank out of this as it couldn't be repaired.  It might be worth going that route if you can't find anyone to look at it. 

Thanks for your post, housebuyer143. When you say call megaflow, what do you mean, call Stelflow the company name on the cylinder?

Sounds like you got a reasonably good deal.

My tank is megaflow so I just called them directly. If your tank is made by someone else it might not have to same deal but it's worth calling the manufacturer as I have heard a few people do this guaranteed fix (too good to be true deal - my mum used it on her valiant). 
When my tank was leaking I was just going to buy a new one and I'm glad someone told me to call megaflow first, saved me £1200.

ComicGeek

housebuyer143 said:

Lulu58 said:

housebuyer143 said:

If you call megaflow they will come and repair it and they have a scheme where they guarantee to fix it for £250 (this is what I did last year) or of it can't be fixed they refund the £250. I got a free tank out of this as it couldn't be repaired.  It might be worth going that route if you can't find anyone to look at it. 

Thanks for your post, housebuyer143. When you say call megaflow, what do you mean, call Stelflow the company name on the cylinder?

Sounds like you got a reasonably good deal.

My tank is megaflow so I just called them directly. If your tank is made by someone else it might not have to same deal but it's worth calling the manufacturer as I have heard a few people do this guaranteed fix (too good to be true deal - my mum used it on her valiant). 
When my tank was leaking I was just going to buy a new one and I'm glad someone told me to call megaflow first, saved me £1200.

Slightly different situation with Megaflo (the brand, not the general and unhelpful term for an unvented mains pressurised hot water cylinder!) as they don't use an expansion vessel, they have an internal air pocket designed to deal with expansion of the water. There is no external expansion vessel to repair/replace.

With the Joule Stelflow there would be an external expansion vessel to replace, so less to do with the cylinder manufacturer itself.

Albermarle

A bit strange that the boiler seemed to stop working - there's no reason I can think of for this, as it doesn't 'know' there's an issue with the Mega

We have had a few problems over the years with the expansion vessel above our unvented hot water tank, but it never affected the boiler working, so this one is a bit of a mystery.

Lulu58

ThisIsWeird said:

It's a toughie - in effect, a gamble.
If a local G3 comes out and finds your EV just needs air, then the whole job could be sorted pretty quickly, and cost - ooh - £100 or so? So under half the F-P repair.
If the EV is kaput, stick £60+ on that. Dripping valve? £30+. Corrosion on the tank? £1k! So F-P is a bargain!
How old is the Stelflow? 

Hi, and thanks again for your post.

The plumber has been in touch and is coming to have a look hopefully later today.  I'm hoping it the £100s rather then £1k mark!!

The Stelflow was fitted late 2019 and commissioned early 2020. 

Lulu58

housebuyer143 said:

My tank is megaflow so I just called them directly. If your tank is made by someone else it might not have to same deal but it's worth calling the manufacturer as I have heard a few people do this guaranteed fix (too good to be true deal - my mum used it on her valiant). 
When my tank was leaking I was just going to buy a new one and I'm glad someone told me to call megaflow first, saved me £1200.

Thanks for the info housebuyer143. I may give Stelflow a call if our plumber can't sort it out.

Lulu58

ComicGeek said:

housebuyer143 said:

My tank is megaflow so I just called them directly. If your tank is made by someone else it might not have to same deal but it's worth calling the manufacturer as I have heard a few people do this guaranteed fix (too good to be true deal - my mum used it on her valiant). 

When my tank was leaking I was just going to buy a new one and I'm glad someone told me to call megaflow first, saved me £1200.

Slightly different situation with Megaflo (the brand, not the general and unhelpful term for an unvented mains pressurised hot water cylinder!) as they don't use an expansion vessel, they have an internal air pocket designed to deal with expansion of the water. There is no external expansion vessel to repair/replace.

With the Joule Stelflow there would be an external expansion vessel to replace, so less to do with the cylinder manufacturer itself.

Hi ComicGeek, our Stelflow has the white expansion tank above the cylinder, and a red one (hot water?) about halfway between the ground and top of the cylinder.

Lulu58

Albermarle said:

A bit strange that the boiler seemed to stop working - there's no reason I can think of for this, as it doesn't 'know' there's an issue with the Mega

We have had a few problems over the years with the expansion vessel above our unvented hot water tank, but it never affected the boiler working, so this one is a bit of a mystery.

Hi Albermarle, I'm wondering if the boiler switched off because of the motor/pump type sound I heard (see post above). We've had problems with our motorised valves before.  This time the two hot water valves were fine but the water valve seemed to be stuck.  Not sure if it's related. 

I look at the 'beast' that is our heating/hot water system in the corner of the garage and lose the will to live!

ThisIsWeird

Lulu58 said:

ThisIsWeird said:

It's a toughie - in effect, a gamble.
If a local G3 comes out and finds your EV just needs air, then the whole job could be sorted pretty quickly, and cost - ooh - £100 or so? So under half the F-P repair.
If the EV is kaput, stick £60+ on that. Dripping valve? £30+. Corrosion on the tank? £1k! So F-P is a bargain!
How old is the Stelflow? 

Hi, and thanks again for your post.

The plumber has been in touch and is coming to have a look hopefully later today.  I'm hoping it the £100s rather then £1k mark!!

The Stelflow was fitted late 2019 and commissioned early 2020. 

2020? I think you can rule out a new cylinder being required (and surely has at least a 5-year warranty in any case), so I would suggest a local plumber is the sensible move. He is G3, isn't he?

Not sure if the EV would be as well?!

Yes, the red EV is for the 'system' side as I described earlier - completely different circuits. You can tell that side is ok by observing the pressure gauge on the boiler. It's hopefully sitting at around 1 bar, perhaps a little above, and doesn't climb significantly as the CH is turned on?

ThisIsWeird

Lulu58 said:

Albermarle said:

A bit strange that the boiler seemed to stop working - there's no reason I can think of for this, as it doesn't 'know' there's an issue with the Mega

We have had a few problems over the years with the expansion vessel above our unvented hot water tank, but it never affected the boiler working, so this one is a bit of a mystery.

Hi Albermarle, I'm wondering if the boiler switched off because of the motor/pump type sound I heard (see post above). We've had problems with our motorised valves before.  This time the two hot water valves were fine but the water valve seemed to be stuck.  Not sure if it's related. 

I look at the 'beast' that is our heating/hot water system in the corner of the garage and lose the will to live!

Yes, if your motorised valves are sticking or faulty in another way, then that could affect the boiler.

The sequence of operation is: your timer (programmer) tells the CH to come on. This sends a signal to the room stat. If the room stat says "Yes, the room needs to be warmer", then it sends a signal to the CH motorised valve. The motorised valve opens, and trips a microswitch when fully open - this sends the 'on' signal to the boiler, and it only then comes on.

A dodgy microswitch, or sticky valve, and the boiler won't come on.

You can ask the plumber to check that the valve appears to be working smoothly?