| Code | Type | Meaning | Immediate Action | | :--- | :--- | :--- | :--- | | | Alarm | Emergency Stop Activated | Check external E-stop switches. | | AL009 | Alarm | Motor Overload (Circuit A) | Measure amp draw; check for binding compressor. | | AL071 | Alarm | Loss of Charge | Inspect for refrigerant leaks; check low-pressure switch. | | AL150 | Alarm | Flow Switch Failure | Verify pump operation; clean strainers. | | CF003 | Config | Incorrect Chiller Type | Reprocess configuration tables after power loss. | | HR035 | Hours | Compressor Run Hours Exceeded | Schedule overhaul based on runtime log. |
Often accompanying new garage features or sound improvements. rthd codes
Trane Series R™ Helical Rotary Water-Cooled Chillers (Model RTHD) Essential Technical Documentation | Code | Type | Meaning | Immediate