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Central Heating & Storage Heaters Forum
Twin Immersion Boiler Stopped Working :(
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<blockquote data-quote="ProDave" data-source="post: 406963" data-attributes="member: 6969"><p>I assume this is the thermostat you have <a href="http://www.thermowatt.com/en/product/122" target="_blank">http://www.thermowatt.com/en/product/122</a></p><p></p><p>There are two spade terminals on the immersion heater and two corresponding terminals on the back of the thermostat,</p><p></p><p>I presume you have disconnected the cable (making a note of how it was connected first) and pulled the old thermostat off.</p><p></p><p>Measure the resistance between the two terminals of the immersion heater, you should get about 19 ohms</p><p></p><p>Now plug the new thermostat onto the heater. Take care, it is very easy for one or other of the spade terminals to miss. Once you are sure it's on properly, measure the resistance between the two terminals on the front of the thermostat (before you re connect the wires to them) you should see the same resistance about 19 ohms.</p><p></p><p>If you don't, and you have checked for the reset button being tripped, then you have faulty thermostats so no point going any further until you get another replacement.</p><p></p><p>If you post your approximate location it may be that one of the decent electricians on this forum could come and fix it for you.</p></blockquote><p></p>
[QUOTE="ProDave, post: 406963, member: 6969"] I assume this is the thermostat you have [URL="http://www.thermowatt.com/en/product/122"]http://www.thermowatt.com/en/product/122[/URL] There are two spade terminals on the immersion heater and two corresponding terminals on the back of the thermostat, I presume you have disconnected the cable (making a note of how it was connected first) and pulled the old thermostat off. Measure the resistance between the two terminals of the immersion heater, you should get about 19 ohms Now plug the new thermostat onto the heater. Take care, it is very easy for one or other of the spade terminals to miss. Once you are sure it's on properly, measure the resistance between the two terminals on the front of the thermostat (before you re connect the wires to them) you should see the same resistance about 19 ohms. If you don't, and you have checked for the reset button being tripped, then you have faulty thermostats so no point going any further until you get another replacement. If you post your approximate location it may be that one of the decent electricians on this forum could come and fix it for you. [/QUOTE]
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Twin Immersion Boiler Stopped Working :(
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