worcester bosch 28i junior hot water problems

[ozzwaldo]

I hope someone can help me with this as i am about to pull my hair out. Here goes when i turn on any hot tap the boiler fires up ok and i start getting hot water no probs, if i turn up the hot tap up full the flow comes really fast the same as the cold water but the water from the hot tap goes luke warm, the boiler is still on and the burner is on full if i turn down the hot tap the boiler goes back to low burner and the water from the tap is red hot again. Its almost as though the water is flowing to fast to heat up properly. It never used to behave this way, when you turned on the hot water in the past it would flow fairly fast but not the same as cold water tap and the water was red hot. Now a bit of recent history the hot water supply recently started acting up in the way that when hot water was demanded the boiler would fire up and then turn off and then fire up again and turn off etc. the flow sensor has been changed which sorted this problem but has left me with the new problem stated previously. I have checked that the flow restrictor/filter is in place in the end of the flow sensor and it is, so i'm at some what of a loss. If you have any ideas that would be amazing thanx to everyone.

 

[tamz]

The flow restrictor may be faulty.
Get a new one or throttle the flow back to around 10 litres/minute by turning the screw on the incoming cold. It may get a bit noisy if you do that depending on your cold pressure.
Your boiler can only heat the water at a rate of around 10 litres/minute at a 40 degree temperature rise

 

[ozzwaldo]

thanks for the reply Tamz it will be thurs before i get chance to try this working away tomoro for a few days but shall post the results when done once again massive thanks.