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vaillant arotherm plus - Failure - DHW

 
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Air Source Heat Pumps (ASHPs)
Last Post by trebor12345 5 months ago
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trebor12345
 trebor12345
(@trebor12345)
Reputable Member Member
Joined: 3 years ago
Posts: 219
Topic starter 29/06/2026 11:16 am  

Vaillant called today and have now changed the inverter.  So all 3 components changed (control board, harness and inverter). They also checked the AC voltage being induced by having the mains supply and EBUS cables separated by 120mm.  This had dropped from 20 volts to 5 volts. 

Now we wait and so what happens. 


This post was modified 5 months ago by trebor12345

2024 build bungalow, Southern England, 179 m2, 12w/m2
Underfloor heating, fully open
Vaillant aroTHERM plus 3.5kW
50 litre volumiser
3.6KW solar panels
Tesla 13.5kw Powerwall 3


   
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