No hot water!!

[Kaz1973]

Hi
We have started having problems where we get hot radiators and no hot water when the heating is switched off and hot water is on, my husband gave the pump a bang with a hammer and that seems to have done the trick kind of, but now the pipes are doing some right knocking, could this be the end of the pump or could we have air in the system???
ideas would be very much appreciated

 

[doitall]

I think the answer is obvious, if the pump is sticking it's on the way out.

 

[kevplumb]

what's the system

 

[gas_man_gaz]

doesn't sound like a fault with the pump if the rads were coming on wen only the hw was selected.. prob a dodgy motorised valve and now a noisy pump

what type of sys ya got??

 

[doitall]

Could be the ball has come loose in the MV.

 

[Kaz1973]

Well this might sound really stupid but we are complete novices, and don't know what the system is, I know this isn't any help. The heating does work fine on it's own too, it is just the hot water. I think when he hit the pump it must have knocked the switch in there. I must admit the knocking is really quite loud too, sounds like we've got someone held hostage up there trying to get out lol

 

[Kaz1973]

how do I find out what kind of sys we have???

 

[doitall]

Post a pic of the valve in the cylinder cupboard with the pump.

Probably got a silver a lid on it, and three pipes.

 

[kevplumb]

View media item 11149

View media item 11148

any help

 

[dextrous]

Sludge/air in the primary?

 

[doitall]

Balls come loose in the 3 port.

 

[gas_man_gaz]

ive got my 1st thanks

 

[kevplumb]

yer guessing again

probably right tho

 

[dextrous]

Balls come loose in the 3 port.

On your marks, get set ....

 

[doitall]

ive got my 1st thanks

No stopping you now