Hi, hope someone out there can help.
Our 8 year old Intergas HRE, serviced annually has started to deliver luke warm (30-degree-ish max) water on DHW. I am located in a hard water area, south Bristol.
From what I can tell..
I am thinking faulty temp sensor on DHW, scaled heat exchanger, or fried PCB.
Thanks in advance
Our 8 year old Intergas HRE, serviced annually has started to deliver luke warm (30-degree-ish max) water on DHW. I am located in a hard water area, south Bristol.
From what I can tell..
- Flow switch works (you can hear the 'click' when opening a tap to say 10% of full)
- Boiler has the ability fires at max - confirmed via test mode
- Water pressure and flow appear normal.
- You can run the boiler on max, in test mode, and only luke warm water comes out of the tap (this might be by design?)
- When you fully open the HW tap, the boiler fan does not seem to go to max - perhaps 60% of max.
I am thinking faulty temp sensor on DHW, scaled heat exchanger, or fried PCB.
Thanks in advance