Alpha cb50 loose pressure

Joined
4 Jan 2010
Messages
16
Reaction score
0
Location
Sheffield
Country
United Kingdom
2 weeks ago pressure dropping. After .4bar pump to 1 bar, Cant see leaks.

Pressure changed .5bar to1.5bar .5bar in minutes. off ,CH to on, then off,
1 bar high? (or 1-2-1)

Pressure vessel check OK, CH .8bar, water 2.5bar
Any Idea?

Please crap writing, a have aphasia.
 
Sponsored Links
But have pv at 2.5 bar, what do ?

Sorry, I gone wrong, I see (PRV) you mean.

There drops cold water in to tundish too.
 
Sponsored Links
Hi Kevplumb,

I tired my best, it not good.

CH expansion good, .8bar
DHW exapansion good, 2.5bar
Tundish is wet inside

The prv's both fed the tudnish

1 bar difference between cold-hot burner on.

OK?
 
I think the prv of the CH u/s

Boiler start at 1 bar, hot water get hot, pressure up, pvr blow at 2ish bar,
( too low) prv blow to 0, zero. Then filling loop squirt water in to 1bar again.

Is this OK?

There can you find these parts?
 
Please help is boiler.

Boiler all day, .8bar 1bar on the dial.

then 0 bar, squirt water to 1 bar, OK, boiler start , 1/2 hours later 2.8 bar , the CH PRV is squirts hot water to the tundish,

I me a hint.

Steve
 
Please help is boiler.

Boiler all day, .8bar 1bar on the dial.

then 0 bar, squirt water to 1 bar, OK, boiler start , 1/2 hours later 2.8 bar , the CH PRV is squirts hot water to the tundish,

I me a hint.

Steve

Hi, it's me after all these years. I can't believe that I posted in this way. Even I can't understand what I said. But I did fix the boiler, it was the PRV.

Cheers
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top