The Alarm Code 17 in Thermo King systems is triggered when the engine that powers the refrigeration system’s compressor fails to start after receiving a start command from the controller. This issue is typically caused by:
- Malfunctions in the starting system.
- Issues with the fuel supply.
- Problems with the engine’s RPM sensor that drives the compressor.
The controller monitors the engine’s revolutions via the RPM sensor. If the engine does not reach 40 revolutions per minute (RPM) or if this value drops unexpectedly, the alarm code 17 is activated.
Procedure to Diagnose Alarm Code 17 in Thermo King
| Action Type | Procedure Characteristics |
|---|---|
| Manual Action | Check the battery voltage and the power cables of the starting system. |
| Manual Action | Inspect for issues with the fuse or fuel solenoid relay. |
| Visual Action | In continuous mode, observe the small LEDs on the circuit board and locate the start signal light. |
| Manual Action | Verify the condition of the starter motor. |
| Manual Action | Check the proper fuel supply, inspect for blockages, and ensure the pump and filters are functioning correctly. |
| Visual Action | Alarm code 17 may appear alongside Alarm 84 (failed restart). However, the issue with Alarm 17 must be resolved first. |
| Manual Action | Clear the Alarm Code 17 on the keyboard interface screen once the issue is resolved. |
Actions to Take for Alarm 17 in Thermo King
- Prioritize the inspection and repair of electrical, mechanical, and fuel systems related to the engine startup.
- Conduct regular preventive maintenance to avoid recurring problems.
- If the alarm persists after completing the diagnostic steps, consult the equipment’s technical manual or contact an authorized Thermo King service center.
