water help no hot water

[jpbroad1970]

hi we have an issue with our heating and water system . new flow switch and new pump , system bled , all done by a professional but still no hot water or heating. when the plumber left yesterday we had boiling radiators and some hot water although the heating was switched off. my suspicion is diverter valve but unsure as to why nothing is working again now. boiler tries to kick in but says FD error (flow)

would be really happy for some advice as we have been 4 weeks without hot water no and the Mrs isn't happy.

thanks in advance
John

 

[Burger]

What’s your cylinder thermostat set to?

 

[jpbroad1970]

What’s your cylinder thermostat set to?

That's set 70 degrees at the moment but the hot water tank is stone cold

Thanks

 

[Burger]

That's set 70 degrees at the moment but the hot water tank is stone cold

Thanks

And have you checked your 3 port again? If that's coming out of your filter, could be blocking your 3 port 😱

 

[jpbroad1970]

And have you checked your 3 port again? If that's coming out of your filter, could be blocking your 3 port 😱

I tried the new 3 port on manual setting and that didn't help, also tried heating and that's not functioning although you can hear the valve motor move. I know is difficult to diagnose on the internet but it's doing is in. If I knew how I could flush it through I would try myself but other than that it's midweek untill we can get a new plumber out. There can't be much else in the system can there. Again I'm guessing but there must be a blockage somewhere. You can hear the water start to flow and you can feel it throughout the pipes to tank but I suppose that could be pump vibration.

 

[Burger]

Ok so you've tried 3 port in manual, are any pipes getting hot? Does the boiler fire up? Can you get hot water from immersion?

 

[jpbroad1970]

Nothing is getting hot , boiler won't fire just keeps coming up flow fault. I don't know if the emersion is still connected as I can see wires or where a heating element would be.

 

[jpbroad1970]

We don't have an Immersion heater, looks like it's been took out but the switch is still there.

 

[Burger]

Did your plumber have to drain anything to change 3 port? If it’s a flow fault it could be the pump.

 

[jpbroad1970]

I presume I can wire in a Immersion heater, I'm just trying to find the length I can use. Attached image is my tank info.

 

[jpbroad1970]

Did your plumber have to drain anything to change 3 port? If it’s a flow fault it could be the pump.

We have new pump , new boiler flow switch, new 3 way valve and no luck lol

 

[Burger]

I presume I can wire in a Immersion heater, I'm just trying to find the length I can use. Attached image is my tank info.

Yes you can, you’d need a 27” one. Are you ok with electrics?

 

[Burger]

We have new pump , new boiler flow switch, new 3 way valve and no luck lol

Looking at the shiote in the filter, could be stopping it. Can you take a photo of your pump (if it’s near cylinder) and 3 port layout? Just to maybe get a different perspective.

 

[jpbroad1970]

Yes you can, you’d need a 27” one. Are you ok with electrics?

Yeah I'm good with electrics, just something for temp and emergency measures like this.

 

[jpbroad1970]

Looking at the shiote in the filter, could be stopping it. Can you take a photo of your pump (if it’s near cylinder) and 3 port layout? Just to maybe get a different perspective.

Best I can get I'm afraid no David bailey

 

[Burger]

Hard to tell from that photo, but I’m unsure if that first valve on the pump is fully open? Check both are fully open (anti-clockwise). Also check your boiler thermostat is turned up.

 

[jpbroad1970]

It was all working on pump speed 2 then only on 3 now nothing . All taps are open as should be so lord only knows.

 

[Aire]

Are you getting no flow on heating and hot water or just when your calling for hot water?

 

[jpbroad1970]

Are you getting no flow on heating and hot water or just when your calling for hot water?

On both , when it was first so called repaired it all worked on pump speed 2 , but then struggled so had to be moved to 3, my thinking is it's a blockage moving around but I'm doing a lot of thinking over it all probably too much lol.

 

[Aire]

On both , when it was first so called repaired it all worked on pump speed 2 , but then struggled so had to be moved to 3, my thinking is it's a blockage moving around but I'm doing a lot of thinking over it all probably too much lol.

It could easily be an airlock after the repair. The plumber most likely drained down to some degree to change the valve so an air lock would not be uncommon. Try cycling your hot water on and off for a few minutes. Using the programmer turn the hot water on, for 10 - 20 seconds, off for 10 - 20 seconds and do this for a few minutes. You should be able to hear the water move and possible hear bubbles in the system. Other than that it could be a blockage or even a blocked cold feed/dried up f&e tank.

 

[Burger]

Did you check the boiler thermostat? And as per @Craig Watson check the f&e tank has water in it. Are there any valves where the pipes connect to the boiler?

 

[jpbroad1970]

Did you check the boiler thermostat? And as per @Craig Watson check the f&e tank has water in it. Are there any valves where the pipes connect to the boiler?

F&e tank ?

Boiler thermostat ok too

 

[Burger]

F&e tank ?

Boiler thermostat ok too

Feed and expansion (sometimes referred to as header tank), or is it a sealed system? In which case do you have correct pressure?

 

[Harvest Fields]

I am loving the position of the Adey filter.

 

[jpbroad1970]

Feed and expansion (sometimes referred to as header tank), or is it a sealed system? In which case do you have correct pressure?

I'll check f and e tank , I have no pressure gauges on boiler or anywhere else for that matter so I presume it's not a sealed system.

 

[jpbroad1970]

I have header tank and cold water tank, both full.

Also now can't get the cap off to fit Immersion heater. Omfg