Engine: Electricity

1. A The constant ringing and trouble alarm sounds when there is a power loss from the 115 VAC power supply to the system.
2. B The constant ringing and trouble alarm sounds when the transmitter rotor and corresponding indicator rotor are in correspondence.
3. C The constant ringing and trouble alarm sounds when the acknowledge handle and indicator arrow are not on the same order.
4. D The constant ringing and trouble alarm sounds when there is a power loss from the battery or emergency switchboard as appropriate.

Tip: press A-D to answer