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you could buy a replacement dgu tomorrow and it might last 20 years. firms just wont guarantee them that long. i replaced about 14 dgu's in my fathers house almost 12 years ago. now i made and fitted them myself and they are still going strong. the reason i made them myself is that i wouldn't...

the main reason dg units break down is the sun. it heats up the sealant, usually hotmelt, causing it to fail over time. if you notice most units that break down are in the sun for a lot of the day

knob alert

i've been hoping it wasn't the board but it looks that way. thanks for your help

yeah i realised what LNE was after i posted. sounded a right thicko i bet. i just wondered if it was something easy i could of done before calling someone out. thought there might be a reset switch or something

sorry my knowledge on boilers is very basic at best. whats LNE?

thanks for the reply. yes i believe they are

hi i found this site whilst trying to solve my boiler problem. looks a great site and i hope someone could help me. i have a vaillant ecotec pro boiler. the hot water stopped working the other day so i checked the boiler to find the pressure had dropped to almost zero. so i topped it back up...