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Circuit Breaker is not tripped but no power
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 494994" data-attributes="member: 250"><p>How What &amp; Why were you testing.....??</p><p></p><p>Obviously you have poked something that has a low resistance conductance between two points that should not have a low resistance between them...</p><p></p><p>Is that a 20A type C breaker supplying the boiler?</p><p></p><p>I am hoping there is another lower rated fuse somewhere... other wise it could well have cooked quite a few components to level well over Medium-Rare!</p><p></p><p>You say the circuit breaker tripped.. But now it's not tripped?</p><p></p><p>Do you mean you have switched it back on after it tripped?</p><p></p><p>Have you verified continuity between the terminals of the circuit breaker?</p><p></p><p>Sometimes the switch may need wiggling up &amp; down a few times if it doesn't make a good electrical contact when first reset..</p><p></p><p>I've had similar situation on an old board where the breaker has not been operated for a long time..</p><p></p><p>First push putting lever back into the up 'on' position doesn't actually re-make the 'ON' connection between the MCBs contacts..</p><p></p><p>(Few wiggles off/on/off/on/off/on etc.. and then the voltage is finally output back to the circuit).</p><p></p><p>As for what happened exactly..? </p><p></p><p>That is quite difficult as none of us were there watching what you were doing!!!?</p><p></p><p>I am guessing.. You poked... went bang... power gone!!!</p><p></p><p>but that's just guessing?</p><p></p><p>+ as others have mentioned... I really do hope this is NOT a UK installations otherwise I would be suggesting legal action against the original installer!</p><p></p><p> Guinness </p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 494994, member: 250"] How What & Why were you testing.....?? Obviously you have poked something that has a low resistance conductance between two points that should not have a low resistance between them... Is that a 20A type C breaker supplying the boiler? I am hoping there is another lower rated fuse somewhere... other wise it could well have cooked quite a few components to level well over Medium-Rare! You say the circuit breaker tripped.. But now it's not tripped? Do you mean you have switched it back on after it tripped? Have you verified continuity between the terminals of the circuit breaker? Sometimes the switch may need wiggling up & down a few times if it doesn't make a good electrical contact when first reset.. I've had similar situation on an old board where the breaker has not been operated for a long time.. First push putting lever back into the up 'on' position doesn't actually re-make the 'ON' connection between the MCBs contacts.. (Few wiggles off/on/off/on/off/on etc.. and then the voltage is finally output back to the circuit). As for what happened exactly..? That is quite difficult as none of us were there watching what you were doing!!!? I am guessing.. You poked... went bang... power gone!!! but that's just guessing? + as others have mentioned... I really do hope this is NOT a UK installations otherwise I would be suggesting legal action against the original installer! Guinness [/QUOTE]
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Circuit Breaker is not tripped but no power
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