Hi
I seem to be having a bit of a problem with our Combi Boiler on the CH side, which I am thinking, after doing some research on the internet, could be the heat exchanger, some help would be appreciated
Problem
Heating comes on as normal, radiators warm up, but the room temperature doesn't reach the cutoff temperature this has become more and more apparent over the past few days as the outside temperature has dropped
After watching the gauges on the boiler (combined water temp and pressure gauge) I noticed that sometimes the temperature gauge shows the water temperature rising then holds at a steady temp for 60 - 120 seconds whilst the boiler is on then it suddenly shoots up and the boiler cuts out, the temp drops very quickly and after a few minutes the process starts again.
Other times (becoming the more frequent) the water temp gauge shows the water temp rising until it reaches the cutout temp (no holding at a lower temp), again cutting out the burner, again the water temp drops rapidly and again after a few minutes the process starts again.
If I adjust the water temp knob to a lower temp it cuts out quicker, it is now on high just to get some heat in to the house
Water pressure is at 2.5bar
Tap hot water works without a problem
Boiler is an Ideal Mini HE (either C24 or C28)
My questions are
1. Am I right it's a heat exchanger issue? and if so could the problem be rectified by flushing the system? or is it a replacement heat exchanger?
2. Am I wrong and the problem is being caused by something different? if so any ideas on what?
Any help appreciated
I seem to be having a bit of a problem with our Combi Boiler on the CH side, which I am thinking, after doing some research on the internet, could be the heat exchanger, some help would be appreciated
Problem
Heating comes on as normal, radiators warm up, but the room temperature doesn't reach the cutoff temperature this has become more and more apparent over the past few days as the outside temperature has dropped
After watching the gauges on the boiler (combined water temp and pressure gauge) I noticed that sometimes the temperature gauge shows the water temperature rising then holds at a steady temp for 60 - 120 seconds whilst the boiler is on then it suddenly shoots up and the boiler cuts out, the temp drops very quickly and after a few minutes the process starts again.
Other times (becoming the more frequent) the water temp gauge shows the water temp rising until it reaches the cutout temp (no holding at a lower temp), again cutting out the burner, again the water temp drops rapidly and again after a few minutes the process starts again.
If I adjust the water temp knob to a lower temp it cuts out quicker, it is now on high just to get some heat in to the house
Water pressure is at 2.5bar
Tap hot water works without a problem
Boiler is an Ideal Mini HE (either C24 or C28)
My questions are
1. Am I right it's a heat exchanger issue? and if so could the problem be rectified by flushing the system? or is it a replacement heat exchanger?
2. Am I wrong and the problem is being caused by something different? if so any ideas on what?
Any help appreciated