Aside from checking the input voltage from the circuit breaker, you can also check the voltage between the red and black sensor wires on the GIT-3A. The controller should supply 16VDC to the sensor over these wires.
Aside from checking the input voltage from the circuit breaker, you can also check the voltage between the red and black sensor wires on the GIT-3A. The controller should supply 16VDC to the sensor over these wires.