Alpha 280P/E Advice Please

[RDS]

Hi all,

Got an Alpha 280P with hot water tap open the boiler firing but water only running luke warm, but when heating on and hot tap open water running nice and hot. I'm assuming diverter valve knackered? But not sure why?? Any advice would be much appreciated

 

[ed209]

If the flow pipe gets hot when heating off but running hot tap its the diverter valve you can also isolate flow and return valves to confirm and get hot water, haven't come across one of them for years bit hit and miss using repair kit but Alpha parts expensive

 

[Alpha man]

Either the dv sticking or hex blocked!

 

[RDS]

If hex was blocked, surely hot water would be lukewarm regardless of whether heating on or off?

New boiler going in end of year with building work going on, but customer wants to keep boiler going til then. Looks like new diverter, plenty of room to work in there at least!!

 

[REDSAW]

unless heat exchangers split into primary!

 

[AMGasServices]

That boiler is very similar to the Baxi 105 (different gas valve + pilot light) . I agree with the posts above. Most likely going to be the diverter.

 

[RDS]

Diverter replaced and all working well, thanks guys