I warmly welcome, A few days ago I replaced the valve with the help of which I knocked water on the stove, drained the water, replaced the valve, poured water, bled radiators, everything works, the stove heats, only strong noise is heard, in the pipes, in the oven. I suspect it's air. Please...

Rear venting device on the expansion vessel (invisible, access difficult).

As a colleague wrote above, the expansion vessel is in the back of the furnace behind the combustion chamber. The vent marked in the figure with number 12. Slightly unscrew (loosen) the cap at the top of the breather, the air will escape and tighten it again.

I have a similar furnace model - Junkers Cerastar. There should be a breather at the top of the expansion vessel. The cap is unscrewed, escaping air can be heard, then it must be tightened. There is a bleed screw on the water pump, you need to slightly loosen it (a few drops of water will flow) and tighten again. In Eurostar it should be similar.

I unscrewed the furnace, and you can probably bleed it only by the screw on the circulation pump.

It is in the apartment, but in one room vent tubes ran under the ceiling. Thank you, the operation was successful.

Dealing with Noise After Valve Replacement in Junkers Eurostar ZWE 24-3 MFA 5 S0700 Oven

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#1 16946129 08 Jan 2018 19:50

ertivo ertivo

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Post #1
16946129 08 Jan 2018 19:50

I warmly welcome,
A few days ago I replaced the valve with the help of which I knocked water on the stove, drained the water, replaced the valve, poured water, bled radiators, everything works, the stove heats, only strong noise is heard, in the pipes, in the oven. I suspect it's air.
Please help

Is the stove venting too? If so how?

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#2 16946476 08 Jan 2018 21:25

Felini Felini

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Post #2
16946476 08 Jan 2018 21:25

I have a similar furnace model - Junkers Cerastar.
There should be a breather at the top of the expansion vessel. The cap is unscrewed, escaping air can be heard, then it must be tightened.
There is a bleed screw on the water pump, you need to slightly loosen it (a few drops of water will flow) and tighten again.
In Eurostar it should be similar.
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#3 17092651 10 Mar 2018 07:38

ertivo ertivo

Level 10
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Post #3
17092651 10 Mar 2018 07:38

I unscrewed the furnace, and you can probably bleed it only by the screw on the circulation pump.

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#4 17093010 10 Mar 2018 12:09

serwisszulborski.pl serwisszulborski.pl

Heating systems specialist

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Post #4
17093010 10 Mar 2018 12:09

Rear venting device on the expansion vessel (invisible, access difficult).
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#5 17093218 10 Mar 2018 13:47

Felini Felini

Moderator

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Post #5
17093218 10 Mar 2018 13:47

As a colleague wrote above, the expansion vessel is in the back of the furnace behind the combustion chamber. The vent marked in the figure with number 12.
Slightly unscrew (loosen) the cap at the top of the breather, the air will escape and tighten it again.
#6 17642821 21 Dec 2018 21:36

ertivo ertivo

Level 10

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Post #6
17642821 21 Dec 2018 21:36

It is in the apartment, but in one room vent tubes ran under the ceiling.
Thank you, the operation was successful.
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