12-05-2019, 05:55 PM
(12-05-2019, 05:05 PM)Graham Honnor Wrote: Would it be safe to join the wires together and bypass the ammeter to test it please?
Yes, Graham it would. The ammeter only measures the current passing through it, so wiring it out will make no difference to the circuit(s). If, once you have bypassed it, everything works, then the ammeter gone 'open circuit'.