Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Domestic Hot Water ...
Hot water issue, ne...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

[Solved] Hot water issue, never seen this before: Grant Heat Pump and Cylinder

 
Page 2 / 2
Domestic Hot Water & Cylinders
Last Post by Marvinator80 2 years ago
14 Posts
5 Users
7 Reactions
7,409 Views
RSS
Tom Sharpe
 Tom Sharpe
(@tomnewarkcylinders)
New Member Member
Joined: 2 years ago
Posts: 1
25/01/2024 9:53 am  

Hi all. A faulty mixer valve sounds like a likely cause to me too. Failing that there could potentially be some cross-flow going on; I notice on the photo of the combination pressure reducing valve, that the balanced cold outlet is plugged. Maybe there's a point in the system at which the higher-pressure cold supply is overpowering the reduced-pressure hot supply, travelling the wrong way down the hot draw off, and subsequently cooling the top of the cylinder down. A bit of a long shot, but this could be something to explore if a mixer valve issue is ruled out.



   
👍
1
ReplyQuote
 Marvinator80
(@marvinator80)
Reputable Member Member
Joined: 4 years ago
Posts: 201
Topic starter 26/02/2024 10:34 am  

@tomnewarkcylinders 

hi Tom, thank you and thanks to everyone else who replied.

it turned out to be a faulty shower that was causing the issue. This was closed off by a plumber and it fixed the issue straight away. Has now been replaced. 

took 3 different plumbers to figure it out but we got there. Nothing to do with the pump or cylinder in the end. 



   
👍
1
ReplyQuote
Page 2 / 2
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Members Online

Click to access the login or register cheese
Protected By
Shield Security PRO