i have replaced my programmer for water and heating which operated my old vulcan continental boiler. I replaced it with a drayton SM2 programmer and although the programmer shows all is working the CH pump does not come on.
The old progammer Sangamo 410 was wired up as
1 CH ON
2 BLANK
3 LIVE WITH LINK WIRE FROM 8
4 CH OFF
5 WATER OFF
6 LIVE N AND E ISOLATED
7 BLANK
8 WATER ON AND LINK TO 3
The SM2 is
N
L
1 HW OFF
2 CH OFF
3 HW ON
4 HW ON
Any suggestions as to what I need to do to get the pump to kick in would stop me banging my head against the wall and make me feel warmer.
JWS
The old progammer Sangamo 410 was wired up as
1 CH ON
2 BLANK
3 LIVE WITH LINK WIRE FROM 8
4 CH OFF
5 WATER OFF
6 LIVE N AND E ISOLATED
7 BLANK
8 WATER ON AND LINK TO 3
The SM2 is
N
L
1 HW OFF
2 CH OFF
3 HW ON
4 HW ON
Any suggestions as to what I need to do to get the pump to kick in would stop me banging my head against the wall and make me feel warmer.
JWS