Ideal Logic+ Reversed pipe connections

[Brian Tack]

Our engineer has fitted this for us and he appears to have piped it correctly. But we keep getting the FA fault code. If we fire up the boiler it seems that the return pipe gets immediately hot but the flow pipe stays cold. The boiler fires for 30 secs then we get the code FA. But looking on top the F pipe stays cold in those 30 secs but the return (if it is the return) gets hot. Hope someone can help. Our engineer seems baffled.
Bri

 

[muggles]

Combi, System, or Heat Only?

 

[Brian Tack]

Heat only

 

[Dan Robinson]

He's either plumb the boiler or the pump backwards.

 

[Brian Tack]

Well it was the original pump but I will put the suggestion to him. Thank you

 

[Brian Tack]

He's either plumb the boiler or the pump backwards.

Dan, if you wire a pump backwards, does it run backwards?
Bri

 

[Dan Robinson]

No.

 

[Brian Tack]

So the pump must be fitted the wrong way round then?

 

[Dan Robinson]

If the pipes are the right way round then yes the pump is wrong. On the side of the pump is an arrow that tells you which way it is pumping.

 

[Brian Tack]

Thanks. Bloody nightmare this

 

[Brian Tack]

Both them things are fine but the boiler is still doing it. Any more ideas please?
Bri

 

[algas]

Air lock ?

 

[Brian Tack]

I am beside myself now. Left with next to no hot water or heating. The engineers have been again. They phoned ideal. No air locks they say but it still won't work! Desperate for ideas if anyone has any. Thanks tho

 

[John D v2.0]

Are all the valves definitely open between the boiler and pump and the rest of the circuit? So water can get all the way round. Is the pump spinning?
How far down did the return get hot, first 12 inches or several metres?

 

[Brian Tack]

Hi John thanks for the reply. I don't know about the valves but hope he has checked that. The pump is spinning. There is less than a meter of return pipe reachable before it disappears upstairs so think he only checked what he could reach. Think he has given up on it. He put some cleaning fluid in and said let me know what happens! He still took more money off me tho!