FLUE GAS READINGS ecotec pro

[sammathias]

routine service today on a ecotec pro 28 approx 8 years old. Basically the boiler would only stay fired up for about 45secs before cycling on and off on max rate. This wasnt long enough for me to get an accurated fga reading.

Gas rate and pressure was good. Am i right in saying could potentailly be a plate hex partial blockage?

 

[Harvest Fields]

So it wasn't a service it was a breakdown

Does it do it on heating as well as hot water?

 

[Harvest Fields]

routine service today on a ecotec pro 28 approx 8 years old. Basically the boiler would only stay fired up for about 45secs before cycling on and off on max rate. This wasnt long enough for me to get an accurated fga reading.

Gas rate and pressure was good. Am i right in saying could potentailly be a plate hex partial blockage?

How was the gas rate and pressure good if you cannot get it into max rate?

 

[ShaunCorbs]

Did you test with the hot tap open ?? Normally test mine with a bath or kitchen tap

Had a basin overflow ooops

 

[Harvest Fields]

Did you test with the hot tap open ?? Normally test mine with a bath or kitchen tap

Had a basin overflow ooops

Not an accurate reading though unless it is in max rate.

 

[sammathias]

So it wasn't a service it was a breakdown

Does it do it on heating as well as hot water?

No no. It was a service. 45seconds is enough time for me to check gas pressure pal.... And i checked gas rate at 1/2ft3/rev and it was all good.

 

[sammathias]

Did you test with the hot tap open ?? Normally test mine with a bath or kitchen tap

Had a basin overflow ooops

Yeh bath tap on full in max rate boiler kept vutting out around 45 seconds.

 

[ShaunCorbs]

Not an accurate reading though unless it is in max rate.

Hot water is always max rate unless it shuts off

 

[ShaunCorbs]

Yeh bath tap on full in max rate boiler kept vutting out around 45 seconds.

Yea plate fecked then check on heating first maybe main hex

 

[Harvest Fields]

No no. It was a service. 45seconds is enough time for me to check gas pressure pal.. And i checked gas rate at 1/2ft3/rev and it was all good.

No worries mate. I like mine for at least 5 minutes on full rate before I do anything. Don't want anything biting me in the bottom later on. Definitely sounds like a circulation issue.

 

[Harvest Fields]

Yea plate fecked then check on heating first maybe main hex

I agree mate. That's what I was saying.
If it is the main heat ex. Quote a new boiler. I passed a job to vaillant for a one off repair the other day and the cheeky beggers sold my customer a new boiler because they couldn't get the side panel off as riveted. I went blooming mad at them. I was not a happy bunny.

Edit due to wanting a rant

 

[ShaunCorbs]

I agree mate. That's what I was saying.
If it is the main heat ex. Quote a new boiler. I passed a job to vaillant for a one off repair the other day and the cheeky beggers sold my customer a new boiler because they couldn't get the side panel off as riveted. I went blooming mad at them. I was not a happy bunny.

Edit due to wanting a rant

it's been a long day looking at carpet

Could you pull the hex out and clean it ? How easy on the vaillints ?

 

[Harvest Fields]

it's been a long day looking at carpet

Could you pull the hex out and clean it ? How easy on the vaillints ?

Really easy if it's a combi. The reason I passed my to vaillant was the price of a new heat ex is extortionate. (Or so i thought, but cheaper then a new boiler). I have had one out and back in again in 2 hours. When I changed a flue collector.

On an vented though. Not a combi

 

[sammathias]

Will check it on heating, if all good will pull the plate out and try clean. Yeah the main hex on vaillants are like £500 before labour haha.

 

[masons]

if you put it on P1 for max you need to check all TRV's are open , opening tap makes no difference on the vaillant if hot flow is poor

if boiler been oversized you can either take diverter head off and pull the pin out to mid position with pliers or turn boiler off at spur and while the diverter is moving at start up pull the electrical connection from diverter at mid position , then put into P1 max which makes it go round the heating circuit