Question about Water Heaters
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Posted on Jan 02, 2017
I'm Harvey the Master Plumber.
Your problem is: The Alpha SY24 boiler has stopped working. The pressure gauge has dropped, you need to know how to re pressurise the system once the radiators have been bled
Every hydronic heating system is required to have a presure regulator. Most guys call it a feeder valve. Every one I've installed or worked on had one. It's job is to keep the water pressure constant by adding water when you release some air without over filling the system. Sounds like it's not working. Some types can be serviced, others cannont so you may have to replace it. If you're not sure what to do it might be prudent to check the Repair Directory for a repairman.
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Harvey your Master Plumber
Posted on Sep 27, 2008
it sounds like the problem may be in the boiler and not the controller itself. Do you kno which is are the two wores that are the r-w for the thermostat take and purt them together and see if the boiler stays on or shuts off like it does with the thermostat. If it does then replace the reciever. If it doesn't then you have another problem. Good Luck
Posted on Jan 07, 2009
most likely the diverter valve.. when hot tap turned on the movement of the water through the valve operates a diaphragm which pushes a pin/button//switch to tell the boiler to fire up
Posted on Sep 02, 2009
Pressure relief valve - replace
The internal seal gets bunged up with dirt & scale and then leaks water [pressure] to that outside pipe
To avoid draining the whole system, turn off the two central heating taps on the 3/4 pipes and then operate the valve manually and / or disconnect - only a small amount of water will escape / drip to below the boiler
Replace valve and fill as before.
If you think your system needs flushing out - now is a good time
Turn off mains electricity to boiler before starting work
Posted on Mar 07, 2010
I would replace the relief valve or remove it to see if it is plugging up.
Buy some cleaner and run it through if you have not done it in a while.
Do the other anyway.
Posted on Feb 02, 2011
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