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Hi, I've just replaced at Danfloss RANDALL 102 Analogue with a Honeywell Sundial RF2 Pack 2. I thought it would be simple enough to swap the two. I've seen another message on this forum changing the same Randall for the same ST9420C. On this forum message the guy said you just need to do the...

Hi, My girlfriends heating has been playing up for a while and I've tried my best but could do with some advice/ideas! HELP!! She has a Potterton Suprima 30 boiler with a Potterton EP2002. The board inside has been previously changed due to common problems but I don't think it's the boiler...