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Central Heating & Storage Heaters Forum
New electric water heater on comfort plus tariff from scottish power
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<blockquote data-quote="kme" data-source="post: 3435" data-attributes="member: 113"><p>How did they ascertain power present? Not with a "noen tester" by any chance? Just having a thought that it could be a missing neutral - Everything appears live; but there`s no path.</p><p></p><p>If you`ve fitted three replacement `stats, they can`t ALL be u/s. does the immersion itself have continuity?</p><p></p><p>Woah, just remembered yesterdays post - scratch my last comment. Immersion won`t work THAT intermittently.....</p><p></p><p>wait 1 while I re-read posts.................</p><p></p><p>ok. me back now. Thinking, so don`t worry when the smoke alarm sounds.</p><p></p><p>with reference to the bullet points so helpfully prepared by my esteemed colleague above:</p><p></p><p>1] Supplyfuse: - Not the issue. 99% n/a</p><p></p><p>2] Horstman economy 7 type switch: - Not likely but possible. 65% n/a</p><p></p><p>3] (possibly fuse spur or double pole 20A switch somewhere?): - Doesn`t fit the symptoms. 90% n/a</p><p></p><p>4] Immersion heater element: - NO</p><p></p><p>5] Immesion heater thermostat: - Not 3 times; and not these symptoms. ( unless connections!!!) ?%</p><p></p><p>6] Twin &amp; earth fixed wiring: - Shouldn`t have been disturbed &amp; doesn`t fit symptoms. 95% n/a</p><p></p><p>7] Heat resistant flex to heater: - and associated connections - probable.</p><p></p><p>8] A night timer switch: - Doesn`t fit with symptoms - BUT....</p><p></p><p>That did just make me wonder if you`ve done anything different with the time switch, which makes it work / not work. (phase supplied via 1 switch; but neutral switched another way - i.e. his spark or plumbit mixed up connections within timeswitch / controller??)</p><p></p><p>I wouldn`t have considered this likely as, from your posted info I see no reason for ANY of the wiring at that end to have been altered whatsoever.</p><p></p><p>HTH</p><p></p><p>KME</p></blockquote><p></p>
[QUOTE="kme, post: 3435, member: 113"] How did they ascertain power present? Not with a "noen tester" by any chance? Just having a thought that it could be a missing neutral - Everything appears live; but there`s no path. If you`ve fitted three replacement `stats, they can`t ALL be u/s. does the immersion itself have continuity? Woah, just remembered yesterdays post - scratch my last comment. Immersion won`t work THAT intermittently..... wait 1 while I re-read posts................. ok. me back now. Thinking, so don`t worry when the smoke alarm sounds. with reference to the bullet points so helpfully prepared by my esteemed colleague above: 1] Supplyfuse: - Not the issue. 99% n/a 2] Horstman economy 7 type switch: - Not likely but possible. 65% n/a 3] (possibly fuse spur or double pole 20A switch somewhere?): - Doesn`t fit the symptoms. 90% n/a 4] Immersion heater element: - NO 5] Immesion heater thermostat: - Not 3 times; and not these symptoms. ( unless connections!!!) ?% 6] Twin & earth fixed wiring: - Shouldn`t have been disturbed & doesn`t fit symptoms. 95% n/a 7] Heat resistant flex to heater: - and associated connections - probable. 8] A night timer switch: - Doesn`t fit with symptoms - BUT.... That did just make me wonder if you`ve done anything different with the time switch, which makes it work / not work. (phase supplied via 1 switch; but neutral switched another way - i.e. his spark or plumbit mixed up connections within timeswitch / controller??) I wouldn`t have considered this likely as, from your posted info I see no reason for ANY of the wiring at that end to have been altered whatsoever. HTH KME [/QUOTE]
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