Boliermate 2000

[Scott M]

I am asking this here because it is almost impossible to get a local plumber to answer the phone at the moment! Must be a busy time of year.

I have never paid much attention to the heating system in my house in the few year I have been here until last week when it stopped working. It is a boiler in the garage feeding a Boilermate 2000 heat store upstairs. The central heating pump on the boilermate died and fried its main board. I replaced the board and bought a replacement pump (grundfos 15-50x18) and got a plumber who works for a bulding firm out on a homer to fit the pump.

Working again but when checking all the radiators I noticed that they are all heating up from the gate valve side ie pipe on gate valve gets hot first, pipe at thermostatic valve is cold and heats up after the radiator gets hot. I suspect it has always been this way as I have never really paid attention to the radiators until now.

Is this an issue? Am I correct in thinking that the thermostatic valve should be on the flow side and gate vale on the return and the raditaro should heat from that side? I think that the pumps can only run in one direction and the new pump is installed correctly, there is direction of flow arrow on it and it is pointing the same way (down) as the old pump, polarity is correct also.

Would that mean that when the house was built, all the radiators in the house were plumbed up the wrong way round? Seems unlikely....

Should I just leave it alone??

 

[ShaunCorbs]

Pump fitted the correct way ?

 

[Scott M]

Pump fitted the correct way ?

Yes, I checked the old pump before it was removes and flow arrow was pointing down as well. Direct replacement for a new one, same model anyway.

 

[Knappers]

I doesn't matter which side the flow is, traditionally your right but valves used to be unidirectional, and before that one pipe systems were entirely dependant on flow direction, now all domestic valves tend to be bidirectional and you could actually argue that TRV would be best on return

 

[Knappers]

Unless I had any problems with function then I wouldn't think about it.
I'm sure boilermate pump in on flow so should be pumping away from store?

 

[Scott M]

I doesn't matter which side the flow is, traditionally your right but valves used to be unidirectional, and before that one pipe systems were entirely dependant on flow direction, now all domestic valves tend to be bidirectional and you could actually argue that TRV would be best on return

Thanks, so probably no need to bother about it. Didn't seem likely that a plumber would fit all the valves in the house that way by mistake.

 

[Rob Sp]

Yes, I checked the old pump before it was removes and flow arrow was pointing down as well. Direct replacement for a new one, same model anyway.

Hi I currently have the same issue you had with a fried PCB that i'm told will be bacuse one of the pumps failed. How did you identify which pump had failed and needed replacing please?