Vailant Combi Boiler

Jo12 · Posted: Mon May 21, 2007 1:28 pm Post Subject: Vailant Combi Boiler

This may seem like a really stupid question but my pressure has gone down to 0 & I need to refill it to between 1 & 1.5 but I cant remember how you do it!!! Can somebody help please?
Many Thanks

Gasguru · Posted: Mon May 21, 2007 2:59 pm Post Subject:

See FAQ's

Jo12 · Posted: Mon May 21, 2007 3:05 pm Post Subject:

I am new to this board, I have read faqs but doesnt tell me where to increase the pressure, can anyone help please?

Gasguru · Posted: Mon May 21, 2007 3:36 pm Post Subject:

http://www.diynot.com/forums/viewtopic.php?t=38904

Post the model as some loops are incorporated into the boiler

Jo12 · Posted: Mon May 21, 2007 3:46 pm Post Subject:

Thank you

islandmonkey · Posted: Wed May 30, 2007 1:33 pm Post Subject: vaillant vcw 18 sine t3w

help. i have a vaillant vcw 18 sine t3w combi boiler.
The water pressure has fallen to almost 0. I need to refill.

I cannot find the cold water refill valve!!! i have searched the manual (a useless diagram), and I have checked this site FAQs and stickies. I am none the wiser.

Please could someone post a reply that tells me exactly where this valve is (apparently somewhere under the boiler according to the manual diagram). with a proper diagram or photo. please please please - don't want to spend £50 on a plumber to open and close a valve.

appreciate it...

Agile · Posted: Wed May 30, 2007 2:54 pm Post Subject:

Monkey, the filling loop on the sine 18 is NOT part of the boiler and could be anywhere in your property.

I once found one under the floorboards!

Look at the FAQ and see what it can look like and search for it.

Tony

islandmonkey · Posted: Wed May 30, 2007 5:13 pm Post Subject: Success

Many Thanks, Agile.

i have found the loop and the valves!

i only had to rip a hole in some boarding near the boiler and search around in the dark for a couple of hours until i found the flexible hose and the valve taps at both ends.

your help appreciated still

twilight01 · Posted: Tue Dec 25, 2007 8:22 pm Post Subject: question

Vaillant boiler almost 20 years old. When central heating is turned on, during the cycle, it keeps switching off and on at regular intervals. We called a corgi engineer but seems he has not managed to solve the problem and would appreciate suggestions as to what could be causing this problem.

Agile · Posted: Tue Dec 25, 2007 8:29 pm Post Subject:

Twilight, you are not meant to add your questions to someone elses old thread.

Copy it to a new posting just for you and we will be happy to help you there!

Tony