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Andrew Smith
Andrew Smith, Plumber
Category: Plumbing
Satisfied Customers: 3586
Experience:  City and Guilds qualified plumber
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Hi, I have a Biasi Riva that is no longer heating water or

Customer Question

Hi,
I have a Biasi Riva that is no longer heating water or central heating. The operation lights are flashing in this order. Right hand green on but not flashing. Middle red and left hand green are flashing. Any thoughts gratefully received.
Many thanks.
Submitted: 3 years ago.
Category: Plumbing
Expert:  Andrew Smith replied 3 years ago.
Can you confirm the system pressure on the gauge?
Customer: replied 3 years ago.

Hi,


it's under 1 bar, about 0.6.

Expert:  Andrew Smith replied 3 years ago.
Are you able to refill the system back up to about 1.5bar?
Customer: replied 3 years ago.

Happy to try, how would I do that?

Expert:  Andrew Smith replied 3 years ago.
Do you have a silver flexible pipe attached to the pipework under the boiler?
Customer: replied 3 years ago.

yes, with a black stopper at each end

Expert:  Andrew Smith replied 3 years ago.
ok, is there a lever valve on each end?
Customer: replied 3 years ago.

yes

Expert:  Andrew Smith replied 3 years ago.
ok, turn one end on full and then crack the other one until you can hear the water whistling in. Let it keep filling until the water pressure rises to 1.5bar and then turn them both off.
Your boiler should fire up now.
Customer: replied 3 years ago.

Hi Andrew,


am in the process of doing that - should the pressure go up quite quickly or slowly?

Expert:  Andrew Smith replied 3 years ago.
Slowly if you have opened it slightly, it will fill faster if you open it more
Customer: replied 3 years ago.

Both valves are open fully but the pressure has only risen by about 0.1 over the last 10 minutes. would that be normal?


Many thanks

Expert:  Andrew Smith replied 3 years ago.
It could be partially blocked if not used before.
Does it sound like the water is still going in?
Can you check the 15mm discharge pipe outside and see if it is running from there?
Customer: replied 3 years ago.

It doesn't sound like water is moving and I can't see any outside..

Expert:  Andrew Smith replied 3 years ago.
Perhaps the valves are not opening fully.
What is the pressure up to now?
Customer: replied 3 years ago.

it's moved to 0.7 - there is a screw valve behind one of the black valves at the joint - bit of a stupid question but should that be open too?

Expert:  Andrew Smith replied 3 years ago.
That will be a cap for the non return valve normally.
Are you able to upload a picture?
Customer: replied 3 years ago.

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Expert:  Andrew Smith replied 3 years ago.
That looks like an isolation valve too, if you turn it so it is in line with the pipe it will fill faster, but be careful as the other valves are fully open
Customer: replied 3 years ago.

So is the black valve in the picture I sent you set to open or closed? I opened the screw valve and there's a bit of leakage

Expert:  Andrew Smith replied 3 years ago.
The picture you sent me, the black valve is closed - in line with the pipe is open.
Customer: replied 3 years ago.

Thanks Andrew, pressure does not seem to be rising at all - any suggestions?


Many thanks.

Expert:  Andrew Smith replied 3 years ago.
Are you able to get a screwdriver and take the levers off, perhaps the valve underneath is not turning fully?
You may need a pair of pliars to turn the valve without the lever.
Customer: replied 3 years ago.

Thanks Andrew - I'm pretty sure the levers are working, just no rise in pressure

Expert:  Andrew Smith replied 3 years ago.
There may be a problem with the valve then.
You may have to get a plumber in on Monday if you can wait that long.
Customer: replied 3 years ago.

Ok - many thanks for your help.

Expert:  Andrew Smith replied 3 years ago.
No problem

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