Hi,
I had my CH powerflushed a few days ago and on two occasions since then the pump has refused to start. You can hear it humming but it doesn't seem to be spinning. Opening the bleed valve directly above the pump and allowing a little air to bleed out causes a gurgle and the punp kicks in.
What's the problem? Just air in the system, or the pump on the way out, or the powerflush moved some gunk to the pump, or anything else?
System is about 15 yrs old, gravity fed from tank in loft. Also does DHW cylinder.
Thanks
I had my CH powerflushed a few days ago and on two occasions since then the pump has refused to start. You can hear it humming but it doesn't seem to be spinning. Opening the bleed valve directly above the pump and allowing a little air to bleed out causes a gurgle and the punp kicks in.
What's the problem? Just air in the system, or the pump on the way out, or the powerflush moved some gunk to the pump, or anything else?
System is about 15 yrs old, gravity fed from tank in loft. Also does DHW cylinder.
Thanks