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Central Heating & Storage Heaters Forum
Can't switch water off when Central Heating is on. Need help please!
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<blockquote data-quote="Stevie G" data-source="post: 533043" data-attributes="member: 25777"><p>To creakyride ,i take it your background is not electrical ,as the 3amp fuse is only in play not to protect programmer, boiler, pump ,Valves etc but for over current protection of the wiring (cable) size . </p><p>All 3pin plug fuses are solely there to protect the cable flex.</p><p>As i mentioned earlier call for HW and see if pump, boiler and valve spring into action . Then do the same for CH .</p><p>As you said previously the programmer HW & CH switches are not mechanical interlocked ,ie you can put the CH ON without calling for HW.</p><p>AS for linking (shorting) out at programmer ,be careful as there is no mention whether the wiring (37 years Old ?) has RCds's ,Rcbo protection against electrical shock !</p><p>The backup battery for the programmer you used to get from RS components , and is for keeping the programmer time and schedules on a mains power failure . </p><h4></h4></blockquote><p></p>
[QUOTE="Stevie G, post: 533043, member: 25777"] To creakyride ,i take it your background is not electrical ,as the 3amp fuse is only in play not to protect programmer, boiler, pump ,Valves etc but for over current protection of the wiring (cable) size . All 3pin plug fuses are solely there to protect the cable flex. As i mentioned earlier call for HW and see if pump, boiler and valve spring into action . Then do the same for CH . As you said previously the programmer HW & CH switches are not mechanical interlocked ,ie you can put the CH ON without calling for HW. AS for linking (shorting) out at programmer ,be careful as there is no mention whether the wiring (37 years Old ?) has RCds's ,Rcbo protection against electrical shock ! The backup battery for the programmer you used to get from RS components , and is for keeping the programmer time and schedules on a mains power failure . [HEADING=3][/HEADING] [/QUOTE]
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Can't switch water off when Central Heating is on. Need help please!
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