Warning Description

The CCR door is open. The door safety interlock is mounted on the top, right opening of the CCR enclosure. The CCR will not operate while this warning is active. If the door is opened while the CCR is running, it will turn the output power off.

Attempt to Correct

Always maintain safe working conditions by using appropriate personal protective equipment (PPE) where necessary.
Close the door.
For service with the CCR door open:
- Pull the door switch plunger laterally out (toward you).

Airport Lighting Company | Type L-828, Type L-829 Ferroresonant Constant Current Regulator