I recently had to replace a weeping joint on my Central heating
system. Emptied and flushed system refilled
to correct pressure whilst bleeding all the rads. Hey presto system no
longer works. Boiler comes up to max temp a little too quickly imho
but no water circulating. Pump is cold its a grundfoss. Took off end
cap, no air shaft turns ok but does not move when switched on no
circulation. Can someone please point me in the right direction.
Boiler is a Sime Planet 30/60 BF.
Jim

On Fri, 23 Feb 2007 04:11:41 -0800, Jimjc wrote:

Pump is cold its a grundfoss. Took off end
cap, no air shaft turns ok but does not move when switched on no
circulation. Can someone please point me in the right direction.

Is there electrical power to the pump?

On 23 Feb, 12:38, John Stumbles wrote:
On Fri, 23 Feb 2007 04:11:41 -0800, Jimjc wrote:
Pump is cold its a grundfoss. Took off end
cap, no air shaft turns ok but does not move when switched on no
circulation. Can someone please point me in the right direction.

Is there electrical power to the pump?

I havent touched the electrics at all except to shut down the system
for flushing. How can I test for this?

On 23 Feb, 12:52, "Jimjc" wrote:
On 23 Feb, 12:38, John Stumbles wrote:

On Fri, 23 Feb 2007 04:11:41 -0800, Jimjc wrote:
Pump is cold its a grundfoss. Took off end
cap, no air shaft turns ok but does not move when switched on no
circulation. Can someone please point me in the right direction.

Is there electrical power to the pump?

I havent touched the electrics at all except to shut down the system
for flushing. How can I test for this?

Problem sorted restarted boiler in manual mode. The remote controller
appears to have a fault.
Thanks

On Fri, 23 Feb 2007 04:52:47 -0800, Jimjc wrote:

On 23 Feb, 12:38, John Stumbles wrote:
On Fri, 23 Feb 2007 04:11:41 -0800, Jimjc wrote:
Pump is cold its a grundfoss. Took off end
cap, no air shaft turns ok but does not move when switched on no
circulation. Can someone please point me in the right direction.

Is there electrical power to the pump?

I havent touched the electrics at all except to shut down the system
for flushing. How can I test for this?

Firstly are you OK with mains electrics? If you don't know how to
safely test that there's main to the pump then you probably shouldn't be
messing with this. To diagnose this sort of problem you're probably going
to have to trace what points in the system are live. Since you say you
replaced the pump are you sure you've re-done the electrical connection to
it OK?