Boiler hot water issue & water pressure issue upstairs. please help!

[Riddy95]

I have looked for a square box stat but there isn't any around the cylinder tank.

 

[ShaunCorbs]

I have looked for a square box stat but there isn't any around the cylinder tank.

Any chance of a picture?

 

[Riddy95]

I don't think mine has a stat please let me know what you think.

 

[ShaunCorbs]

In the unvented hot water panel you see the stickers on it so doubt it’s been knocked so that’s no the issue

But you have a tmv3 on your hot water out for some reason eg follow the top pipe out of the cylinder you will see 2 other pipes link to that with a chrome valve

Do you know why that’s on it ?

 

[Deleted member 120897]

Update, replaced the motor of the valve think it was called a synchronous, that's fixed the hot water not turning on, thanks for that! I haven't been able to fix the poor pressure, both my showers are cold unless I turn to max heat, bath is never warm enough. Attached is a photo of my cistern. Thanks

That’s a photo of the cylinder, not the cistern

 

[Riddy95]

In the unvented hot water panel you see the stickers on it so doubt it’s been knocked so that’s no the issue

But you have a tmv3 on your hot water out for some reason eg follow the top pipe out of the cylinder you will see 2 other pipes link to that with a chrome valve

Do you know why that’s on it ?

I have absolutely no idea, it's been like that since I moved in 2009.

 

[Riddy95]

That’s a photo of the cylinder, not the cistern

In that case I don't have a cistern as this is the only item related to my boiler (aside from the boiler itself)

 

[Deleted member 120897]

In that case I don't have a cistern as this is the only item related to my boiler (aside from the boiler itself)

Yes, apologies, I should have said, you won’t have a cistern with an unvented cylinder.

 

[Riddy95]

No problem at all! Is there a valve that could be stuck or anything in particular I should check for the lack of pressure?

 

[Deleted member 120897]

No problem at all! Is there a valve that could be stuck or anything in particular I should check for the lack of pressure?

I don’t hold my G3 quali’s, but assuming the cold main is still ok, maybe the pressure reducing valve, or blending valve - but these would need a G3 registered engineer.

 

[ShaunCorbs]

That valve I would say is the problem

 

[Ben-gee]

Personally I would remove the tmv valve and go back to how it was originally, would be a simple alteration.