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boiler needs help
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<blockquote data-quote="Burnt Chips" data-source="post: 21570" data-attributes="member: 175214"><p>FOUND IT (had my head up me arse in March/APRIL) So wasnt on here then.</p><p>Right S D boiler, am i correct Heating works fine but when u open a tap burners dont raise (as hot water main burn) not a lot of people know this. Most common faults first </p><p></p><p>Faults FLOW switch (2 little micro switchs in a bank together) which push a plunger down a silver valve to switch over (about 7 inchs long ) (useually rusts where contacts are)</p><p></p><p>Diaphram a rubber seal underneath these switchs,</p><p></p><p>Programmer (stuck in heating mode) and not sending command for hot water,</p><p></p><p>Main pcb burnt out around contact points (or transformer)</p><p></p><p>And finally Gas Valve (not opening fully) </p><p></p><p>If its the S DUVALL that has reinforced rubber hoses (i dont fancy your chances) and if as you say you have all parts if you want pm me i`ll give you me home number and will go through each st 1 at a time.</p></blockquote><p></p>
[QUOTE="Burnt Chips, post: 21570, member: 175214"] FOUND IT (had my head up me arse in March/APRIL) So wasnt on here then. Right S D boiler, am i correct Heating works fine but when u open a tap burners dont raise (as hot water main burn) not a lot of people know this. Most common faults first Faults FLOW switch (2 little micro switchs in a bank together) which push a plunger down a silver valve to switch over (about 7 inchs long ) (useually rusts where contacts are) Diaphram a rubber seal underneath these switchs, Programmer (stuck in heating mode) and not sending command for hot water, Main pcb burnt out around contact points (or transformer) And finally Gas Valve (not opening fully) If its the S DUVALL that has reinforced rubber hoses (i dont fancy your chances) and if as you say you have all parts if you want pm me i`ll give you me home number and will go through each st 1 at a time. [/QUOTE]
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