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Boiler pressure saunier duval

Can't turn the blue taps to repressurise the boiler. No movement either way on either tap. Advice?

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  • 317 Answers

Appear to be corroded/plugged inlet valve. De-pressurize system and check inlet valves and line.

Posted on May 19, 2013

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Posted on Jan 02, 2017

gary1121
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SOURCE: I have a combi boiler and a 'popping' hot tap

the lock nut has either come loose under the handel or the 'o' ring and stem have loosened up, might this be a delta faucet? if so replace the cartridge "stem" and the o-ring and spring you will be fine,,

Posted on Jun 09, 2009

  • 3 Answers

SOURCE: How do I increase the water pressure on the saunier Duval boiler?

not enough infromations give more detail

Posted on Dec 09, 2009

  • 7 Answers

SOURCE: Hi, I have a Saunier Duval? Theilea twin 28e

You may want to check the Pressure Reducing Valve On the supply line to the building. Easiest way to check is get a guage that hooks up to your hose bib (usually found in the sprinkler section at your hardware store). If your pressure is getting above 80, you need a new PRV.

Posted on Feb 14, 2011

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Low pressure Saunier Duval therma condens boiler


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I have a vaillant eco pro 28 combi boiler. no constant hot water unless tap is on really low.


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Pressure gauge reading zero


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First of all turn on a hot water tap and keep it running whilst you check to see if your boiler is firing up, if it is not then try to restart it, you should hear the flame if its running, turn your tap off then just stand by the boiler for a few minutes to see if the pressure gauge starts to rise, if it doesn't rise you will never get any hot water, you will have to add some pressure to about 1 and a half on the dial, to do that is simply turn on the water valve in the bottom of your boiler and watch your pressure gauge rise to about 1 and a half then firmly turn it off again, it looks like a small tap like the one at the back of your washing machine pipe, it's ok you will hear the water rushing in, now with your gauge at about 1 and a half and your boiler running your water will get hot

Oct 23, 2012 | Water Heaters

1 Answer

Hi, I have a Saunier Duval? Theilea twin 28e


You may want to check the Pressure Reducing Valve On the supply line to the building. Easiest way to check is get a guage that hooks up to your hose bib (usually found in the sprinkler section at your hardware store). If your pressure is getting above 80, you need a new PRV.

Feb 14, 2011 | Water Heaters

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Hi, Got a Saunier Duval Thema F 23 E and need to repressurise it (currently at 0 bars). can you provide any help on how to do it? Thanks.


http://www.saunier-duval.co.uk/manuals/pdf/noncurrent_products/installation_ThemaF23e-SBF23e.pdf

Here are complete instructions for installation and service including purging air and refilling. One of the first suggestions is that service is to be referred to a competent technician.

Gary

Dec 18, 2010 | Water Heaters

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Hi there. Our valiant boiler doesn't seem


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I have a Glowworm 30 cxi and the light is flashing, the pressure is 0.4.... i have no water or heating...help please


Under the boiler a little right of center there is a blue/other colour knob. Turn this anticlockwise [as you look up] [twist from right to left] This is the mains inlet tap to let water into the boiler and create the pressure shown on the guage 0.5 bar is the absolute nin.
allow the water to flow in until the guage reads about 1 bar then turn off the knob -not too tight as these are plastic
If you allow too much pressure- do not worry, there is an automatic relief valve.
If the boiler persists in loosing pressure, look for a leak in all pipes to & from radiators. If no leak then check the pressure relief valve outlet pipe, it usually goes through the wall to the outside. Look at the end for water drips & if there are drips replace valve

Oct 12, 2009 | Water Heaters

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