Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Power Cut - Heat Pu...
 
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!

Power Cut - Heat Pump Evaporator Iced Up

 
Air Source Heat Pumps (ASHPs)
Last Post by trebor12345 8 months ago
1 Posts
1 Users
0 Reactions
383 Views
RSS
trebor12345
 trebor12345
(@trebor12345)
Estimable Member Member
Joined: 2 years ago
Posts: 179
Topic starter 21/11/2025 9:42 pm   [#2616]

We have just had a power cut and 1 hour later power was restored.  The heat pump powered up again and after 30 minutes I became nervous that the evaporator was at -20C, hardly any air flow across the evaporator, so I have shut it down for the rest of the evening.

How do you deal with the above situation and a iced up evaporator?

What would of happened if I had let it run in this iced up situation?

Did I do the right thing by turning off, or should I have let it run?

Thank you for your feedback.

BTW, R32 refrigerant.


This topic was modified 8 months ago 2 times by trebor12345

2024 build bungalow, Southern England, 179 m2, 14w/m2
Underfloor heating, fully open
Vaillant aroTHERM plus 3.5kW
50 litre volumiser
3.6KW solar panels


   
Quote
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

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