Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Compressor attempts...
 
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!

Compressor attempts start but fails - Nibe Fighter 2005 8kW

 
Page 2 / 2
Air Source Heat Pumps (ASHPs)
Last Post by skyefarmer 8 months ago
15 Posts
5 Users
9 Reactions
3,558 Views
RSS
JamesPa
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 3 years ago
Posts: 5462
30/01/2026 9:32 am  

@ian21stcent 

I assume you have checked filters which is a common reason for a range of failure symptoms?


4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
👍
1
ReplyQuote
 skyefarmer
(@skyefarmer)
Active Member Member
Joined: 1 year ago
Posts: 8
Topic starter 30/01/2026 10:26 am  

@ian21stcent Hello. I replaced the soft start on mine about 3 years ago. The only indication I had that the soft start had failed was the fault led. I couldn't find an exact replacement, the new unit had better spec. but was a bit taller which caused slight problem. I'm not on Skye right now so can't tell you what replacement was. I will check email. But I think you have same issue.



   
👍
1
ReplyQuote
 skyefarmer
(@skyefarmer)
Active Member Member
Joined: 1 year ago
Posts: 8
Topic starter 30/01/2026 10:30 am  

@ian21stcent Email archive is invaluable. I purchased a CSS-25U Emerson Compressor Soft Starter 25A from Kempston Controls



   
🙏
1
ReplyQuote
Page 2 / 2
Forum Jump:
  Previous Topic
Next Topic  

Currently viewing this topic 1 guest.

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