When it comes to maintaining a refrigerator, one of the most common issues that homeowners face is with the start relay. The start relay is responsible for initiating the refrigerator’s compressor, which is critical for keeping the unit cold. In this article, we will be discussing overload refrigerator start relay wiring diagram, including what it is, how to install it, and some frequently asked questions.
What is an Overload Refrigerator Start Relay Wiring Diagram?
An overload refrigerator start relay wiring diagram is a schematic representation of a refrigerator’s start relay and overload protector. The diagram shows the electrical connections between the components, including the compressor, start relay, overload protector, and capacitor. Understanding this diagram is important for troubleshooting and repairing a refrigerator’s start relay.
How to Read the Diagram
Before we dive into the specifics of the diagram, it’s important to understand how to read it. The diagram will consist of several different symbols that represent various components. These symbols include:
| Symbol | Description |
|---|---|
| Compressor | Large cylinder-shaped component responsible for compressing refrigerant gas. |
| Start Relay | Small rectangular-shaped component that initiates the compressor’s electrical circuit. |
| Overload Protector | Small cylindrical-shaped component that monitors the current flow to the compressor and interrupts the circuit if the current exceeds the overload rating. |
| Capacitor | Small cylindrical-shaped component that stores electrical energy and releases it when needed. |
With these symbols in mind, let’s take a look at the wiring diagram.
The Wiring Diagram
The wiring diagram will typically consist of several different lines with symbols and labels that indicate the electrical connections between the components. Here’s a typical example of what a refrigerator start relay wiring diagram might look like:
As you can see, there are several different sections to the diagram. Here’s what each section represents:
Power Supply
The power supply section is where the diagram starts. This section shows the incoming power supply that connects to the refrigerator. In most cases, the power supply will be a standard 120-volt household circuit.
Compressor
The compressor section shows the electrical connections between the compressor and the rest of the components. This includes the start relay, overload protector, and capacitor. The start relay initiates the compressor’s electrical circuit, while the overload protector monitors the current flow and interrupts the circuit if necessary. The capacitor helps to store and release electrical energy as needed to keep the compressor running smoothly.
Thermostat
The thermostat section shows the electrical connections between the thermostat and the power supply. The thermostat is responsible for monitoring the temperature inside the refrigerator and turning the unit on or off as needed to maintain the desired temperature.
FAQs
How Do I Install an Overload Refrigerator Start Relay?
Installing an overload refrigerator start relay is a relatively simple process. Here’s how to do it:
- Unplug the refrigerator and locate the start relay on the compressor.
- Remove the old relay by pulling it straight off the compressor.
- Disconnect the wires from the old relay.
- Connect the wires to the new relay according to the wiring diagram.
- Push the new relay onto the compressor.
- Plug in the refrigerator and test the compressor.
What Does an Overload Protector Do?
An overload protector is a safety device that monitors the current flow to the compressor. If the current exceeds the overload rating, the protector will interrupt the circuit and prevent the compressor from running. This helps to prevent damage to the compressor and other components in the refrigerator.
What Happens if the Start Relay Fails?
If the start relay fails, the compressor will not start and the refrigerator will not cool properly. In some cases, the relay may make a clicking sound or may not make any sound at all. If you suspect that the start relay has failed, it will need to be replaced.
How Can I Troubleshoot Start Relay Issues?
If you’re experiencing issues with your refrigerator’s start relay, there are a few troubleshooting steps you can take. First, check the wiring connections to make sure they’re secure and free from damage. Next, test the relay with a multimeter to ensure that it’s functioning properly. If the relay is faulty, it will need to be replaced.
