Keeping your refrigerated trailer in top condition is crucial for ensuring the safe transport of perishable goods. Whether you’re managing a fleet or operating a single unit, knowing how to replace common reefer parts can save you time, money, and potential headaches on the road. But where do you start? What parts need frequent replacement? And can you handle these fixes yourself, or should you call in a pro?
This guide breaks it all down for you. We’ll walk through the most commonly replaced reefer parts, how to identify the right replacements, and step-by-step instructions to help you get the job done efficiently. Let’s dive in!
Identifying Commonly Replaced Reefer Parts
Reefer units are made up of several critical components that work together to keep cargo at the right temperature. Over time, certain parts wear out and require replacement. Here are some of the most frequently swapped reefer components:
- Reefer Controller Components – The brain of the unit, responsible for temperature regulation and system monitoring.
- Reefer Sensors and Relays – These help detect temperature changes and ensure proper cooling operation.
- Compressors – A failing compressor can lead to inefficient cooling, making it one of the most vital parts to replace when needed.
- Evaporator and Condenser Coils – These play a key role in heat exchange and can become clogged or corroded over time.
- APU Replacement Parts – Auxiliary Power Units (APUs) help reduce fuel consumption and extend the reefer’s life.
- Thermo King & Carrier Reefer Parts – Components from leading brands, including controllers, relays, and sensors, require periodic maintenance.
Knowing which part is malfunctioning is the first step in keeping your reefer running smoothly.
How to Identify the Right Replacement Part
Finding the correct replacement part is essential to ensure your reefer unit operates correctly. Here’s how to do it:
- Check the Model and Serial Number – Look for a label on your reefer unit that provides this information.
- Consult the Manufacturer’s Manual – This will list the exact part numbers and specifications for your model.
- Use Online Resources – Many suppliers offer part lookup tools to help match the right replacement.
- Contact a Professional – If you’re unsure, reach out to a reefer parts supplier for guidance.
Using incorrect parts can lead to performance issues, so always double-check before purchasing.
Step-by-Step Guide to Replacing Common Reefer Parts
1. Replacing Reefer Sensors and Relays
Symptoms of a Faulty Sensor or Relay:
- Inconsistent temperature readings
- Frequent reefer unit shutdowns
- Unresponsive reefer controller
How to Replace:
- Turn off the reefer unit and disconnect the battery to prevent electrical hazards.
- Locate the faulty sensor or relay near the reefer controller.
- Carefully unplug or unscrew the component, noting its wiring setup.
- Install the new part in the same position and secure it.
- Reconnect the battery and test the unit to ensure proper function.
2. Replacing a Reefer Compressor
Symptoms of Compressor Issues:
- Weak or no cooling
- Strange noises coming from the unit
- Excessive power consumption
How to Replace:
- Turn off and depressurize the system to avoid accidents.
- Remove the mounting bolts and disconnect refrigerant lines.
- Carefully remove the old compressor and replace it with the new one.
- Reconnect refrigerant lines and electrical connections.
- Test for leaks and restart the reefer to verify proper function.
3. Reefer Controller Repair and Replacement
Symptoms of a Failing Controller:
- Unresponsive keypad
- Incorrect temperature readings
- Inconsistent reefer operation
How to Replace:
- Power down the reefer unit completely.
- Open the reefer control panel and locate the controller board.
- Disconnect all wiring from the old board and remove it.
- Install the new controller, ensuring all connections match the previous setup.
- Power on the unit and check for proper function.
Can You Replace Reefer Parts Yourself?
The answer depends on your experience and the complexity of the replacement. Some components, like sensors and relays, are relatively easy to swap out. However, more technical parts, such as compressors and controllers, might require professional assistance.
If you’re comfortable with mechanical and electrical work, you can handle basic replacements. But for more intricate repairs, it’s best to call a certified reefer technician to avoid damage or safety hazards.
Are Remanufactured Reefer Parts Reliable?
Many fleet owners and independent operators wonder whether remanufactured reefer parts are a good alternative to OEM components. The truth is, high-quality remanufactured parts from trusted suppliers can be just as reliable as new ones.
Benefits of Remanufactured Parts:
- More affordable than brand-new OEM parts
- Environmentally friendly by reducing waste
- Tested and refurbished to meet performance standards
Just be sure to purchase from a reputable supplier to ensure reliability.
Where to Buy Replacement Reefer Parts
Finding the right supplier is key to ensuring you get reliable refrigeration unit spare parts. Here are some good sources:
- Authorized Thermo King and Carrier Reefer Dealers – Best for OEM parts.
- Online Reefer Parts Suppliers – Many offer a wide selection of both new and remanufactured components.
- Local Reefer Repair Shops – Can provide both parts and professional installation services.
Make sure the supplier offers a warranty and has good customer reviews before making a purchase.
Frequently Asked Questions (FAQs)
1. What is the warranty on replacement reefer parts?
Most suppliers offer warranties ranging from 6 months to 2 years, depending on the part type and manufacturer.
2. Do you offer international shipping for reefer replacement parts?
Yes, many online suppliers provide international shipping for refrigerated trailer components.
3. How do I troubleshoot issues to determine if a part needs replacement?
Start by checking error codes on the reefer controller, inspecting for visible damage, and testing components with a multimeter if applicable.
4. What payment methods are accepted when ordering reefer replacement parts?
Most suppliers accept credit cards, PayPal, wire transfers, and sometimes financing options for bulk purchases.
Final Reflections
Replacing common reefer parts doesn’t have to be complicated. With the right knowledge, tools, and replacement components, you can keep your reefer unit running efficiently and avoid costly downtime. Whether you choose OEM or remanufactured parts, always prioritize quality and compatibility.
Need reliable refrigeration unit spare parts? Explore trusted suppliers for Thermo King replacement parts, Carrier reefer parts, and more to keep your cold chain operations running smoothly.