Hi,
Firstly thanks for everybody's help on here, you've been really helpful so far.
Quick summary of my problem - Ariston MicroGenus 27MFFI combi - when hot water is run the pilot light fires off then cycles on/off every 15 seconds or so, resulting in cold showers!
I was advised to have a powerflush and replace the secondary heat exchanger. I didn't go for the powerflush (as the guy didn't do anything other than remove the front of the boiler) and I was advised otherwise by another plumber. I adding Fernox central heating cleanser a few days back and will drain and refill tomorrow, adding inhibitor. (Interestingly when I drained the system it was pretty much all clear, no sign of black/sludge at all!?)
I'm now going to address the secondary heat exchanger and have a couple of questions:
1) In the manual, there's no mention or sign of disconnecting pipework - just removing two hex screws and popping it off - is that all there is to it?
2) It mentions draining down the boiler - I can't find any information on this at all. Any tips?
3) Is there anything I should look out for when doing this - (i.e. the manual says check the 'o' rings.
Thanks in advance,
Graham
Firstly thanks for everybody's help on here, you've been really helpful so far.
Quick summary of my problem - Ariston MicroGenus 27MFFI combi - when hot water is run the pilot light fires off then cycles on/off every 15 seconds or so, resulting in cold showers!
I was advised to have a powerflush and replace the secondary heat exchanger. I didn't go for the powerflush (as the guy didn't do anything other than remove the front of the boiler) and I was advised otherwise by another plumber. I adding Fernox central heating cleanser a few days back and will drain and refill tomorrow, adding inhibitor. (Interestingly when I drained the system it was pretty much all clear, no sign of black/sludge at all!?)
I'm now going to address the secondary heat exchanger and have a couple of questions:
1) In the manual, there's no mention or sign of disconnecting pipework - just removing two hex screws and popping it off - is that all there is to it?
2) It mentions draining down the boiler - I can't find any information on this at all. Any tips?
3) Is there anything I should look out for when doing this - (i.e. the manual says check the 'o' rings.
Thanks in advance,
Graham