C
cobra
hi all
if i do a short circuit test on combi boiler between live and neutral when isolated, if i find a short circuit then i believe that i am supposed to disconnect wires from pcb to each component and test wires and component for short circuit, but how do i test for short circuit on wires and components that do not have a live and neutral ie different colour wires ie thermister or air pressure switch.
problem 2 when doing resistance to earth checks between live and earth at combi terminal and find a fault (assuming live to earth test means live leaking to earth ) how do i find/ isolate the wiring at fault ie could be wiring ie switched live or some other live wire but may not have no earth. hopefully this makes some sense to you. did a manufacturers course a while back and was shown the the 5 tests before working on combi, but wasnt shown how to further this ie to isolate and find faulty wiring or component and i was probably too flustered at the time to ask this question.
thanks again although relatively new to website been given lots of good guidance and knowledge
if i do a short circuit test on combi boiler between live and neutral when isolated, if i find a short circuit then i believe that i am supposed to disconnect wires from pcb to each component and test wires and component for short circuit, but how do i test for short circuit on wires and components that do not have a live and neutral ie different colour wires ie thermister or air pressure switch.
problem 2 when doing resistance to earth checks between live and earth at combi terminal and find a fault (assuming live to earth test means live leaking to earth ) how do i find/ isolate the wiring at fault ie could be wiring ie switched live or some other live wire but may not have no earth. hopefully this makes some sense to you. did a manufacturers course a while back and was shown the the 5 tests before working on combi, but wasnt shown how to further this ie to isolate and find faulty wiring or component and i was probably too flustered at the time to ask this question.
thanks again although relatively new to website been given lots of good guidance and knowledge