Well, happy xmas Wintersun.
My first post on the forum, so hello gentle people at plumbers forum.
The old trusted EP2001 gave up the ghost this weekend. So thank you guys for sending me on the right tracks. I just bought and fitted an EP2, in place of the defunct programmer. Fits on the same back plate, snap and go. Great.
However.... There is always one of those....
I have here to describe the system a wee bit to see if anybody can help.
The gas boiler feeds a neutraliser, a dunsley box, which is also gravity fed by a multifuel boiler. That system has served us well for the last 28 years.
One pump, called HW pump sits next to the gas boiler, and the CH pump sits next to the dunsley box.
When advancing or extending a central heating program on the old EP2001, both HW and CH pumps were triggered as the hot water needs to be lifted to the neutraliser before it can be pumped to the radiators.
On this new EP2, I have to advance or extend both HW and CH programs manually.... bit of a pest. Can live with it, but did I overlooked the obvious?
The wiring has not been touched while swapping the programmer.
Thanks in advance for taking the time to read and may be solve the issue.
MacWilliam