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Fan unit Making terrible noise HELP!!

 
Air Source Heat Pumps (ASHPs)
Last Post by ASHP-BOBBA 1 month ago
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 GutoFfowc
(@gutoffowc)
Eminent Member Member
Joined: 3 years ago
Posts: 13
Topic starter 10/01/2026 12:58 pm  

One of a pair of fan units on an Earth Save Classic II sounds like a slipping fan belt; high metallic whine.

Are the bearings going? Anything I can do before I locate an engineer. (as it's a weekend)



   
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 ASHP-BOBBA
(@ashp-bobba)
Noble Member Member Professional Installer
Joined: 1 year ago
Posts: 406
11/01/2026 11:24 am  

can you post a video looking inside, at and through the fan grille? check that the fan blade is not being restricted by ice as its cold at the moment, you would need to shine a powerful torch through to likely see this.


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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 GutoFfowc
(@gutoffowc)
Eminent Member Member
Joined: 3 years ago
Posts: 13
Topic starter 13/01/2026 11:31 am  

@ashp-bobba The fan unit has now died. ESP says it's not repairable/replaceable as the model is too old (Installed 2012)

So we are now looking for a replacement for the ESP Classic 13KW. I just wished it had packed up in the spring or summer, not winter.



   
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 ASHP-BOBBA
(@ashp-bobba)
Noble Member Member Professional Installer
Joined: 1 year ago
Posts: 406
13/01/2026 12:33 pm  

@gutoffowc Oh no, sorry to hear that, are you in the Kent area?


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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