Worcester 28i junior- hot water but no central heating

[Sammi Brown]

my thinking is pump just that yes i can feel some vibrations within but dont feel its enough to be functioning properly, was thinking diverter valve but with radiators upstairs getting hot more inclined to think that is working

 

[diamondgas]

my thinking is pump just that yes i can feel some vibrations within but dont feel its enough to be functioning properly, was thinking diverter valve but with radiators upstairs getting hot more inclined to think that is working

Diverter valve? We talking Worcester Greenstar Junior Sammi ?

 

[diamondgas]

I'm thinking, these don't have a heating flow switch do they ? So, could it just be the pump packed up ? The upstairs rads maybe getting hot through gravitation ????

I'm thinking it's a greenstar? But you're dead right, although they'd probably overheat yeh?

 

[Mickyplumb]

history is changed flow sensor 6 months ago as it developed a leak, other than that this problem has occured in the last month, changed fan due to it being faulty when checking initial problem , changed pcb which had some signs of problems dried cracked solder, prior to changing pcb had no hot water either but since changing pcb have ho****er now but no heating,

Are you sure it wasn't the dhw flow switch that was changed ? And in yu last post you mention diverter valve. Is it a standard efficiency, ie not condensing ?

 

[zeebeedee]

Kaboom

 

[Mickyplumb]

Kaboom

LOL zeebeedee

 

[diamondgas]

Kaboom

Your brain just popped mate

 

[Sammi Brown]

its not greenstar that was later model , my model the 28i junior was discontinued in 2005, some slight differences,

 

[Sammi Brown]

and no its not condensing

 

[diamondgas]

its not greenstar that was later model , my model the 28i junior was discontinued in 2005, some slight differences,

you mentioned diverter valve Sammi, the older (your) version didn't have them, the newer condensing did! Hence some confusion!

 

[Mickyplumb]

and no its not condensing

Okay, so no diverter. That's a dead cert.

 

[Mickyplumb]

Can you not unscrew the vent screw on the pump and carefully stick a screwdriver in the top of the armature and see how much resistance is needed to slow or stop the pump. Experience will tell you what is right and what is wrong.

 

[zeebeedee]

What's the gc number?

 

[diamondgas]

I'm guessing 47 311 70 zeebeedee!

 

[Sammi Brown]

GC No- G20 47 311 70

 

[diamondgas]

Experience will tell you what is right and what is wrong.

Now that is very true

 

[zeebeedee]

I'm guessing 47 311 70 zeebeedee!

Ha good guess!

 

[diamondgas]

Ha good guess!

I just so happen to have the mi's on PDF! Now they are probably the worst I've downloaded as they're not consecutive! Thankfully I'll only ever need them here online I hope!!!

 

[Sammi Brown]

right you r :clap:

 

[diamondgas]

right you r :clap:

We're on the same page then Sammi?

 

[Sammi Brown]

well the old grey matter is hurting now,

 

[Sammi Brown]

does your pdf file say what it is ?????????????????

 

[diamondgas]

well the old grey matter is hurting now,

LOL ... You've spent some money trying to get to the bottom of a problem that is either the pump, or system blockage IMHO! Without being present and listening, feeling, observing and questioning your about at the limits of my assistance Sammi to be honest

What's the water colour like? Are you in a hard water area?

 

[diamondgas]

does your pdf file say what it is ?????????????????

Nope they say Jack!!! AS usual

 

[Sammi Brown]

yes in hard water area, and water colour fine and to be honest not spent gr8 deal our local plumb centre quite cheap considering had boiler for 8 years an only just decided have problem, did function very well prior,