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vaillant arotherm plus - Failure - DHW

 
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Air Source Heat Pumps (ASHPs)
Last Post by trebor12345 1 hour ago
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trebor12345
 trebor12345
(@trebor12345)
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Joined: 2 years ago
Posts: 179
Topic starter 29/06/2026 12:16 pm  

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 1 hour ago 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


   
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