Users can remove all display ads (not sponsors) for a small fee. Click for info (must be logged in)

Discuss Megaflo / Vaillant / Nest not producing hot water - help! in the Central Heating Forum area at PlumbersForums.net

E

ERJones

We have moved into a house which has a system involving a Vaillant boiler, indirect Megaflo and Nest. The Megaflo has been producing the hot water since we moved in (which we didn't realise) but the fuse blew the other day. We've now replaced the fuse. The boiler engineer was able to 'boost' the hot water from the boiler to fill up the Megaflo via the Nest, and by locking the two-way valve, but that hot water has now run out and we can't get the boiler to fill the Megaflo again. The Megaflo itself also doesn't appear to want to produce hot water. Clearly something has gone wrong somewhere (the Nest isn't telling either to produce hot water?) but we're a bit stuck. Any advice would be welcome on whether there's something simple we're missing, or do we need to get an engineer in (in which case, what kind as neither the boiler engineer nor the electrician seemed to really understand the system). Thank you!
 

Reply to Megaflo / Vaillant / Nest not producing hot water - help! in the Central Heating Forum area at PlumbersForums.net

Similar plumbing topics

  • Question
Ideal Logic 24, Previous problem was that the hot water was only cold or barely warm if the heating was in use. If heating was off and boiler cold...
Replies
2
Views
196
Hi all I'm hoping someone can shine a light on this for me Since our stop tap on the pavement has now been filled with sand for whatever reason...
Replies
3
Views
315
Hi, Can anyone advise as to why the cold water to my bathroom keeps airlocking? This originally happened about 12 months ago and has happened 3-4...
Replies
9
Views
419
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock