Hello. I moved into a flat that is heated by the saunier duval semia boiler. The pressure in the circuit is low so when venting radiators, it will drop more. Can somebody tell me how water is coming to the cycle because unfortunately I didn't get much out of the instruction manual. I only...

Have you read the instructions? Page 12. Description of item 21

The first thing is a manual - just as a colleague wrote earlier. Here you can see where the water filling valve for central heating is - the one with the blue knob:

Hello, what about when after using the water supply valve nothing happens and the bars do not increase. Replacement valve? If so, can you do it yourself? Best regards!

And then cold water (domestic water) is fed into the boiler? Maybe it's somewhere crazy before? With this filling valve, anything can happen - it may not unscrew, but it may also not turn off and tap water all the time

Saunier Duval Semia Boiler: Low Pressure & Filling Circuit, Tips for Venting Radiators

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#1 16680096 04 Sep 2017 09:45

stroona87 stroona87

Level 9

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Post #1
16680096 04 Sep 2017 09:45

Hello.
I moved into a flat that is heated by the saunier duval semia boiler. The pressure in the circuit is low so when venting radiators, it will drop more.
Can somebody tell me how water is coming to the cycle because unfortunately I didn't get much out of the instruction manual. I only located the valve with the cotter pin.
I am asking for some tips because I am a complete layman in this topic.

Best regards.
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#2 16681228 04 Sep 2017 20:57

gersik gersik

Level 33

» | Positive voted Helpful post? (+10)

Post #2
16681228 04 Sep 2017 20:57

Have you read the instructions? Page 12. Description of item 21
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#3 16681706 05 Sep 2017 07:57

ls_77 ls_77

Level 37

» | Positive voted Helpful post? (+10)

Post #3
16681706 05 Sep 2017 07:57

The first thing is a manual - just as a colleague wrote earlier.

Here you can see where the water filling valve for central heating is - the one with the blue knob:
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#4 16699529 14 Sep 2017 19:40

Damisio8 Damisio8

Level 1

» | Helpful post? (+3)

Post #4
16699529 14 Sep 2017 19:40

Hello, what about when after using the water supply valve nothing happens and the bars do not increase.

Replacement valve?

If so, can you do it yourself?

Best regards!
#5 16700289 15 Sep 2017 07:54

ls_77 ls_77

Level 37

» | Helpful post? (+3)

Post #5
16700289 15 Sep 2017 07:54

And then cold water (domestic water) is fed into the boiler? Maybe it's somewhere crazy before?

With this filling valve, anything can happen - it may not unscrew, but it may also not turn off and tap water all the time
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