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I recently replaced the DHW Flow Switch on my Ideal Response 120 and despite the odd problem it has been providing hot water fine again. Over the last couple of weeks however its started to play by not always firing up the fan and not heating the water. Tonight, no matter which hot tap I...

Recently you diagnosed a problem with my Ideal Response 120 not heating water - you recommended I clean or replace the DHW flow switch. I've cleaned it and it worked for a couple of days but now its behaviour has become erratic. Sometimes it works perfectly and others it starts (eventually)...

I've got an Ideal Response 120 which you've recently helped me fix when it was over pressurising. Recently I've found that its stopped firing up consistently when I turn on any hot tap. The central heating system seems fine, but I have to repeatedly turn the sink hot top on and off and listen...

I've had the above model boiler in my house for a number of years, and last winter I noticed that after every use of the central heating the system would completely depressurise. For one reason or another I didn't get round to looking at it, but this year its become an annoyance so I've...