Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Jan 8, 2012
135
2
18
Hi Please can you help?
I have a Vaillant Ectotec plus.(4 years old) and a megaflo. For some reason it has just stopped working . The screen is flashing F22 and stating the pressure is O bar. So I have tried to repressurise it between 1 and 2 bar but I can only get it go up to 0.3. I opened up the two black valves either side of the external silver braded filling loop hose. After about I minute I couldn't hear the water running into the boiler any more. The filling noise has stopped and boiler is silent. Am I supposed to turn any other valves?
I have turned the boiler off but you can only see notices on the screen when it is turned on.
Would be very grateful for your thoughts
Betty
 
Hi Please can you help?
I have a Vaillant Ectotec plus.(4 years old) and a megaflo. For some reason it has just stopped working . The screen is flashing F22 and stating the pressure is O bar. So I have tried to repressurise it between 1 and 2 bar but I can only get it go up to 0.3. I opened up the two black valves either side of the external silver braded filling loop hose. After about I minute I couldn't hear the water running into the boiler any more. The filling noise has stopped and boiler is silent. Am I supposed to turn any other valves?
I have turned the boiler off but you can only see notices on the screen when it is turned on.
Would be very grateful for your thoughts
Betty


Is there two Grey knobs beneath the Boiler ?
If so you need to turn both. they will only turn one way and only quarter of a turn.
 
Please see photo... Yes the water pressure in taps seems ok. I did notice about a week ago though in middle of night when getting some water, there was very little water coming from the kitchen tap....not sure if it was Thames Water working on system

Heating system.jpg
 
Make sure that the stop tap is opened correctly and make sure that there is not a stop tap in the cupboard that has been turned off.

Edit due to not reading post
 
I just checked system and can see boiler was on. Pressure is now registering 3.1 bar in use?!
Not sure what is going on
 
I just checked system and can see boiler was on. Pressure is now registering 3.1 bar in use?!
Not sure what is going on

dont fire the boiler up

have you got a small container if you have bleed a rad via the air bleed screw until you get it around 1-1.5 bar cold or 2-2.5 bar if the system is warm
 
dont fire the boiler up

have you got a small container if you have bleed a rad via the air bleed screw until you get it around 1-1.5 bar cold or 2-2.5 bar if the system is warm
Pressure sensor will still need sorting though Shaun. Get an engineer out to sort t for you. Otherwise it will do not again.
 
I have turned boiler back on and bled rads - think I got it 2.6 bar whilst running, bled some more about 2 -3 cups and then it went 2.7. Can't trust what it is so have turned it off....don't want to damage boiler or megaflo
 
I had to turn boiler on to see pressure on system...otherwise you are bleeding rads and don't know what pressure is. It's a bit stupid you have to have boiler on to read pressure. Valliant must have a few perplexed customers because of this
 
Plumb base do a filling loop with built in pressure gauge, handy to have a gauge near to where you fill system or else you need two people one on filling loop and one watching pressure on boiler
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.