Troubleshooting units which contain the deluxe 24V control option may be made easy by using the three LEDs (light emitting diodes). These LEDs are provided for indicating the operating mode of the controller.
An example of the deluxe board installation is shown below with the diagnostic LEDs circled in red. The board orientation may vary depending on the model unit ordered. Older versions of the Deluxe control have a slightly different layout and color.
| Color: Green | Color: Red | Controller Mode | |
|---|---|---|---|
| LED 1 | LED 2 | LED 3 | |
| OFF | OFF | OFF | Control OFF |
| ON | OFF | OFF | Normal/Compressor OFF |
| ON | OFF | FLASH | Anti-short cycle |
| ON | OFF | ON | Normal/Compressor ON |
| FLASH | ON | OFF | Brownout Condition |
| ON | FLASH | ON | Soft Lockout (low pressure) |
| ON | FLASH | FLASH | Soft Lockout (high pressure) |
| ON | ON | ON | Manual Lockout (low pressure) |
| ON | ON | FLASH | Manual Lockout (high pressure) |
| ON | FLASH | OFF | Manual Lockout (condensate overflow) |
| ON | ON | OFF | Compressor Disable |
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.