Dear All
I already had my own suspicions & ideas; & as usual the posts on this forum are very helpful but I just thought I would post a new question to get some current opinions.
I moved into my new home approximately 6 months ago & the Puma 80e has been no problem so far. Having come back from a 2 week holiday I went to have a shower (run off a standard mixer tape) & the temperature was going hot & cold throughout. On further investigation when the shower is turned on the boiler fires up & rapidly heats the water; the boiler then gets to a point where the flame goes out & the water is not heated. A minute or so can pass & then the boiler will fire up again; the cycle will then re-occur. It seems that that the boiler is getting hot swiftly & that the cold water entering the boiler is not able to take the heat away from the boiler quick enough so it temporarily shuts off until sufficiently cooled, before then firing again. My question is; is this likely to be a scaled exchange not allowing sufficient heat transfer or could it just be the wax capsule, which from other posts sounds like it can restrict the water flow to such a degree that heat is not removed quick enough by the poorly flowing water? I can confirm that CH works fine & that the DHW issue does not seem to occur if CH is on.
Any ideas appreciated.
Thanks
I already had my own suspicions & ideas; & as usual the posts on this forum are very helpful but I just thought I would post a new question to get some current opinions.
I moved into my new home approximately 6 months ago & the Puma 80e has been no problem so far. Having come back from a 2 week holiday I went to have a shower (run off a standard mixer tape) & the temperature was going hot & cold throughout. On further investigation when the shower is turned on the boiler fires up & rapidly heats the water; the boiler then gets to a point where the flame goes out & the water is not heated. A minute or so can pass & then the boiler will fire up again; the cycle will then re-occur. It seems that that the boiler is getting hot swiftly & that the cold water entering the boiler is not able to take the heat away from the boiler quick enough so it temporarily shuts off until sufficiently cooled, before then firing again. My question is; is this likely to be a scaled exchange not allowing sufficient heat transfer or could it just be the wax capsule, which from other posts sounds like it can restrict the water flow to such a degree that heat is not removed quick enough by the poorly flowing water? I can confirm that CH works fine & that the DHW issue does not seem to occur if CH is on.
Any ideas appreciated.
Thanks