Hi,
Recently I noticed that we were running out of HW more than expected, perhaps it’s people are taking more baths but I wanted to check out if the pair of Vaillant uniSTOR’s were both heating, thinking that maybe I had a problem with one of the Zone Valves were not heating one of the tanks.
Felling the Hot Flows, both uniSTORE tanks are fully heated.
So then I thought, perhaps I’m just losing more heated water with the Secondary Return flow in this cold season. So in looking at the Secondary Circulating AutoAdapt pump, I changed the mode from Auto through Temp and 100%. This started the pump, but it does not sound right now, possibly air or something else ?
Flow via all the taps and showers is good, so I’m not sure how I could have air that part of the secondary flow pipes.
The sound in the video below the picture is my unplugging and plugging in the Grundfos Secondary Flow Pump.
Anybody heard anything like this ?
Recently I noticed that we were running out of HW more than expected, perhaps it’s people are taking more baths but I wanted to check out if the pair of Vaillant uniSTOR’s were both heating, thinking that maybe I had a problem with one of the Zone Valves were not heating one of the tanks.
Felling the Hot Flows, both uniSTORE tanks are fully heated.
So then I thought, perhaps I’m just losing more heated water with the Secondary Return flow in this cold season. So in looking at the Secondary Circulating AutoAdapt pump, I changed the mode from Auto through Temp and 100%. This started the pump, but it does not sound right now, possibly air or something else ?
Flow via all the taps and showers is good, so I’m not sure how I could have air that part of the secondary flow pipes.
The sound in the video below the picture is my unplugging and plugging in the Grundfos Secondary Flow Pump.
Anybody heard anything like this ?
