Hi,
Every few 10s of seconds my programmer is turning the hot water demand off and on again. (CH is turned off, so I don't know whether it exhibits the same problem).
The relay clicks off and the led turns off at the same time. Then about 1 second later both turn on again. Everything then works for 20 to 40 seconds and repeat.
Duff programmer?
Thanks,
David
Every few 10s of seconds my programmer is turning the hot water demand off and on again. (CH is turned off, so I don't know whether it exhibits the same problem).
The relay clicks off and the led turns off at the same time. Then about 1 second later both turn on again. Everything then works for 20 to 40 seconds and repeat.
Duff programmer?
Thanks,
David