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Why is my ASHP consuming power when CH is off?

 
Air Source Heat Pumps (ASHPs)
Last Post by SUNandAIR 12 months ago
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Morgan
 Morgan
(@morgan)
Noble Member Member
4040 kWhs
Joined: 3 years ago
Posts: 540
Topic starter 27/05/2023 10:24 am  

As per the pictures below. My (Mitsubishi 11.2kw) is consuming energy and maintaining a constant temp' showing as "Heating" when the CH is turned off in settings and DHW is up to temp and not calling for heat.

Surely no power should be consumed except when the DHW requires heat, Legionella protection is required?  Annoying me a tad.

Screenshot (38)
Screenshot (39)
Screenshot (40)

 

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.


   
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 SUNandAIR
(@sunandair)
Prominent Member Member
2538 kWhs
Joined: 1 year ago
Posts: 345
27/05/2023 9:00 pm  

hi @morgan

this issue was discussed on a post about 2 months ago: find post called:

Mitsubishi 8kW - strange energy use readings

It has been noticed that the Mitsubishi software appears to add notional energy useage to the MELCloud Energy useage record when in stand by mode.It has been noticed by a few people and it appears to be known by Mitsubishi.

I had recorded our energy over reporting on the same thread.

hope this helps


   
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