Thermo King is a prominent company specializing in temperature control systems for various engines, particularly those used in transportation like trucks, trailers, ships, and railroad engines.
This article explores the causes and repair methods for Thermo King Alarm Code 63, providing practical examples and expert knowledge to ensure the information is accurate and reliable.
Thermo King Temperature System
Thermo King’s systems are designed to maintain optimal engine temperatures, ensuring efficient performance and longevity. These systems come with alarm codes that monitor the engine’s functionality and alert users to potential issues.
Thermo King Alarm Code 63
Alarm Code 63 is a significant alert indicating the engine has stopped for an unknown reason. This code is concerning as it suggests a potential failure in the engine’s temperature control system, which could lead to severe overheating and subsequent damage.
Ideal Engine Working Temperature:
- Average ideal temperature: 80-90 degrees Celsius.
- Engines below the perfect temperature can cause detonation, pollution, and fuel wastage.
Read also: Heat Pump vs Forced Air, What are those ?
Causes of Thermo King Code 63
Understanding the root causes of Alarm Code 63 is essential for effective troubleshooting. Here are the primary causes:
- Low Engine Oil Level:
- Example: A trucking company experienced frequent Code 63 alerts, traced back to a slow oil leak causing the engine oil to drop below safe levels.
- Fuel System Issues:
- Problems with the fuel pump or fuel solenoid.
- Expert Insight: Regular maintenance and timely replacement of worn-out components can prevent these issues.
- RPM Sensor Malfunction:
- Example: A refrigerated trailer failed to maintain its temperature due to a faulty RPM sensor, leading to a Code 63 alert.
- Overheating and Vapor Lock:
- High temperatures cause fuel to vaporize and the engine to stop.
- Trustworthiness: Keeping the engine within the recommended temperature range can prevent such occurrences.
Repairing Thermo King Code 63
To address Thermo King error code 63, follow a systematic troubleshooting process. Here are the steps:
- Check High-Pressure Cut:
- Ensure the high-pressure cut-off values are within the recommended range.
- Engine Vapor Motor CR Failed to Start:
- Inspect electrical connections and the motor itself for loose wires or damage.
- Check Suction Line Sol Circuit:
- Verify the solenoid and its wiring for faults.
- Failed Remote Return Air Sensor:
- Replace with a compatible sensor.
- Check Liquid Line Solenoid:
- Examine for operational defects and replace damaged parts.
- Receiver Tank Press Sol:
- Ensure the pressure switch functions correctly.
- Check High Discharge Pressure:
- Identify causes of high discharge pressure, such as issues with the compressor or condenser.
- Coil Inlet Temp Sensor:
- Verify connection and functionality, replacing if faulty.
- Check Evap Coil Outlet:
- Clear any obstructions impacting temperature control.
- Check Receiver Tank Press:
- Maintain pressure within the specified range.
- Check Evaporator Coil Sensor:
- Replace defective sensors.
- Check Evap Coil Inlet:
- Clean or repair obstructions.
- Evap Coil Inlet Temp:
- Address underlying problems affecting temperature control.
- Check Remote Fan Speed:
- Ensure fans and speed control systems are operational.
- Multiple Alarms Cannot Run:
- Investigate and address the root causes of each alarm.
- Controlling on Evap Coil Outlet Temp Sensor:
- Calibrate the control system based on sensor readings.
Importance of Regular Maintenance
Regular maintenance is crucial to preventing Alarm Code 63 and other issues. Here are some best practices:
- Regular Oil Checks: Ensure engine oil levels are adequate and there are no leaks.
- Fuel System Maintenance: Regularly inspect and replace fuel pumps and solenoids.
- Sensor Calibration: Periodically calibrate sensors to ensure accurate readings.
Common Thermo King Codes and Their Meanings
| Code | Description | Priority | Action Required |
|---|---|---|---|
| 10 | High discharge pressure | Red | Immediate attention required |
| 20 | Failed motor vapor | Yellow | Check without technician |
| 26 | Refrigeration issue | Yellow | Check refrigeration components |
| 61 | Low battery voltage | Yellow | Inspect the alternator and replace if faulty |
| 32 | Low refrigeration capacity | Red | Immediate attention required |
| 25 | Alternator check needed | Yellow | The engine stopped, unknown reason |
| 63 | Follow the troubleshooting steps above | Red | Follow troubleshooting steps above |
Conclusion
Thermo King Alarm Code 63 is a critical alert indicating potential severe issues within the engine’s temperature control system. By understanding the causes and following a systematic approach to repair, these problems can be effectively resolved.
Regular maintenance and timely troubleshooting are essential to ensure the efficient operation of Thermo King systems.
Thermo King Alarm Code Download
If you need another Thermo King alarm code, download it at this link Thermo king alarm code pdf.
