Hi,
I have recently had a Vaillant VRC 430 + ecoTec Plus 428 installed and all seems to be working OK except for one problem.
The VRC 430 flow temperature demand is changing to 0 degC for periods of around 10 minutes when the radiators should be heating up. Obviously this delays the warmup of the radiators quite significantly and this happens several times during a heating period. It happens when the actual room temperature is below the target room temperature. The unit is wall mounted. After around 10 minutes or so at 0 degC it recovers and goes back to the flow temperature corresponding to the selected heating curve.
Does this sound like a faulty unit, or is this a 'feature' of the VRC 430?
Thanks
I have recently had a Vaillant VRC 430 + ecoTec Plus 428 installed and all seems to be working OK except for one problem.
The VRC 430 flow temperature demand is changing to 0 degC for periods of around 10 minutes when the radiators should be heating up. Obviously this delays the warmup of the radiators quite significantly and this happens several times during a heating period. It happens when the actual room temperature is below the target room temperature. The unit is wall mounted. After around 10 minutes or so at 0 degC it recovers and goes back to the flow temperature corresponding to the selected heating curve.
Does this sound like a faulty unit, or is this a 'feature' of the VRC 430?
Thanks