Heating Activating Water each time (Grasslin TowerC QE2)

[Maurice Gray]

Hi - I have a Grasslin Towerchron QE2 programmer. When I set my own time for water, it will come on just as programmed...on it's own. But for the heating times, this also activates the water everytime. Even if I only Boost Heating, it will light up the water too. From the instruction manual, separate on and off times should be possible. Any ideas why the heating is activating the water each time, and how to stop this. Appreciate any advice. Thanks,

 

[SimonG]

Do you have a fully pumped heating system or pumped heating and gravity hot water?

 

[Maurice Gray]

I have a JAB Duplex Unvented Cyclinder, which I believe is fully pumped.....water comes directly from the mains. I hope that answers what you asked. Thanks

 

[Maurice Gray]

Just bumping this...to see if anyone has any thoughts. Thanks,

 

[SJB060685]

My initial thought would be like SimonG was getting at, is the programmer set for gravity HW and pumped CH in which case this will happen, however if fine before then unless someone has fiddled with the programmer then this won’t be it. The other option is a fault internally with the programmer.

 

[Harvest Fields]

I have seen new systems wired in as old gravity. You need need the whole system looking at if it has always done this.

Or it has been wired wrong

 

[Maurice Gray]

Ok - thanks for the answers guys. I will have to look into the gravity vs pumped issue. It's not something I've heard of before. Thanks for answering.