Status Indicators for the Controller
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| Illustration 1 | g00666695 |
Self-Diagnostic Status Indicators (1) Status Indicators (2) Controller | |
There are three status indicators. Each indicator is a different color. The colors of the indicators are in the following list: red, yellow and green. The indicator may be flashing or the indicator may be continuously illuminated. Different combinations of the conditions indicate the status of the controller.
Green Indicator
When the disconnect switch and the keyswitch are in the ON position, the green indicator should be ON. If the green indicator is not ON, check the fuse for the controller and the power wiring to the controller.
When positive 24 VDC is applied to the controller, the green indicator should be ON. The DC voltage is applied to connector 1 at contact 1. The ground is applied to contact 2.
The Green Indicator and the Yellow Indicators
The green indicator is ON when power is applied to the controller.
The yellow indicator is ON when there is a problem of communication between the controller and the monitor. If the yellow indicator is ON, check the wiring harness for the data link between the controller and the monitor for the following conditions:
- Open Circuits
- Shorts to Ground
- Shorts to the Battery
The Green Indicator and the Red Indicator
The condition indicates that the controller has an internal fault. Replace the controller. Refer to Testing and Adjusting, "Controller - Replace".
The Green Indicator, Yellow Indicator, and the Red Indicator
The condition indicates that the controller has an internal fault. Replace the controller. Refer to Testing and Adjusting, "Controller - Replace".
No Power to Monitor
Verify that all of the harness connectors are properly connected. Check the fuse for the monitor. Check the wiring harness for broken wires or wires that are shorted to ground.
The Monitor is Blank or the Monitor Does Not Respond
Verify that all of the harness connectors are properly connected. Check the fuse for the monitor. Check the wiring harness for broken wires or wires that are shorted to ground. Check the data link for open circuits and/or short circuits. Refer to Testing and Adjusting, "Communication Problem Between Controller and Monitor - Troubleshoot".
Switch Circuits
The controller is unable to identify the system errors in the switch circuits. No error codes are available to assist the troubleshooting procedure. When a switch circuit does not appear to be working correctly, there may be a fault in the circuitry. Service Code 16 is Digital Input. This function is used to assist troubleshooting the circuitry. Refer to Testing and Adjusting, "Using Service Mode".