Today Gechy Electric Co.,Ltd answer some question about use automatic voltage regulator problem and solution way.

Why does the AVR immediately trip off when it is switch on?

If the AVR immediately trip off, it means that the loading capacity must exceed the fused current amperage or that of the circuit breaker, in this case, you need to reduce the load, or use a bigger capacity AVR to power the loaded appliance.

All the indicators on the AVR shows normal, but the AVR has no output,why?

Possible caused : the output circuit is failure 

Solution : take to the repair center