Hi guys
Anybody shed any light on this please...?
I've just had a new pcb fitted to my Potterton Suprima 70 (as seems to be the norm after a period of time with these things...!)
Boiler now fires up when required and heats hot water and heating well...
However, when I have either hot water only OR hot water and heating selected to run, the pump seems to run for a period of about 5 minutes, then stops for about a second then starts again.
The pump never seems to stop running during the whole 3 hours or so I have the heating or hot water timned to come on....just a continual cycling of 5mins (ish) on...2 secs off.
I have 2 Myson power extra valves. The central heating valve seems to be operating normally, cycling on/off for the heating demand.
The other valve (return valve back to the boiler (I presume) is constantly energised (LED ON always).
Should this valve be cycling ON/OFF as well, thus sending a signal to the pump to stop - or is it normal for the valve to be permanently ON and the pump cycling ON (5mins) Off (2 secs)...?!!
It sounds like a faulty myson to me...but would be grateful if anyone could give me a heads up on how the system should run before I get BG out.
Many thanks guys!
Anybody shed any light on this please...?
I've just had a new pcb fitted to my Potterton Suprima 70 (as seems to be the norm after a period of time with these things...!)
Boiler now fires up when required and heats hot water and heating well...
However, when I have either hot water only OR hot water and heating selected to run, the pump seems to run for a period of about 5 minutes, then stops for about a second then starts again.
The pump never seems to stop running during the whole 3 hours or so I have the heating or hot water timned to come on....just a continual cycling of 5mins (ish) on...2 secs off.
I have 2 Myson power extra valves. The central heating valve seems to be operating normally, cycling on/off for the heating demand.
The other valve (return valve back to the boiler (I presume) is constantly energised (LED ON always).
Should this valve be cycling ON/OFF as well, thus sending a signal to the pump to stop - or is it normal for the valve to be permanently ON and the pump cycling ON (5mins) Off (2 secs)...?!!
It sounds like a faulty myson to me...but would be grateful if anyone could give me a heads up on how the system should run before I get BG out.
Many thanks guys!