how-to-tell-if-refrigerator-start-relay-is-bad

How To Tell If Refrigerator Start Relay Is Bad

When it comes to maintaining your refrigerator, one of the crucial components that often goes unnoticed until it malfunctions is the start relay. This small device plays a pivotal role in the functioning of your fridge by helping to start the compressor, which is the heart of the refrigerator’s cooling system. In this detailed guide from TheKitchenApplianceDad.com, we’ll explore how to determine if your refrigerator’s start relay is bad and what steps you can take to address this issue.

What is a Refrigerator Start Relay?

The start relay is an electrical device that helps jumpstart the compressor. It acts as a bridge for electricity to pass through, allowing the compressor to start and maintain its operation. Without a functioning start relay, your refrigerator’s compressor might not work, leading to a series of cooling problems.

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Signs of a Faulty Start Relay

To keep your refrigerator in optimal condition, it’s essential to recognize the signs of a faulty start relay. Here are some common indicators:

1. Refrigerator Not Starting: One of the most obvious signs is when the refrigerator fails to start. If the appliance does not turn on, or if it cannot maintain the desired temperature, the start relay could be the culprit.

2. Unusual Noises: If you hear clicking sounds coming from the back of the refrigerator near the compressor, this could indicate a start relay problem. These sounds typically occur when the relay is struggling to start the compressor.

3. Overheating Compressor: When the start relay fails, it can cause the compressor to overheat. This is due to the compressor continuously trying to start without success, leading to excessive heat buildup.

4. Burnt Odor: A burnt smell coming from the refrigerator can be a sign of a start relay burning out. This odor may be caused by overheated wiring or a malfunctioning relay.

Testing the Start Relay

If you suspect that your refrigerator’s start relay may be failing, testing it is a straightforward process. Here’s how you can do it:

Step 1: Unplug the Refrigerator
Safety first! Always unplug your refrigerator from the power source before attempting any repairs.

Step 2: Access the Start Relay
The start relay is usually located at the back of the refrigerator, near the compressor. Remove the panel that covers the compressor to access it.

Step 3: Remove the Start Relay
The relay is typically connected by a series of wires. Carefully disconnect these wires and remove the relay. Be sure to note how the wires are connected so you can reattach them correctly later.

Step 4: Test the Relay
You can test the start relay using a multimeter. Set your multimeter to the resistance (Ohm) setting and measure the resistance between the relay’s terminals. A functioning relay will typically show a reading between 3 to 12 ohms. If the multimeter displays a reading outside of this range or shows infinite resistance, the relay is likely faulty and needs replacement.

Replacing the Start Relay

If your testing confirms that the start relay is bad, replacing it is your next step. Here’s how you can replace a faulty start relay:

1. Purchase a Replacement Relay
Ensure you buy a compatible relay for your refrigerator model. You can find this information in the refrigerator’s manual or by searching online based on your model number.

2. Connect the New Relay
Attach the new start relay by connecting the wires as they were configured on the old relay. Make sure each connection is secure.

3. Reassemble and Test
Once the new relay is connected, reattach the back panel of the refrigerator and plug in the appliance. Listen for the compressor to start up without unusual noises and check if the refrigerator reaches and maintains the appropriate temperature.

Preventative Maintenance

To avoid future issues with your refrigerator’s start relay, consider these preventative maintenance tips:

  • Clean the Condenser Coils: Dirty condenser coils can cause the refrigerator to work harder, putting more strain on the start relay and compressor. Clean these coils every six months to ensure optimal performance.
  • Check the Electrical Connections: Ensure that all electrical connections related to the compressor and start relay are secure and not corroded.
  • Regular Inspections: Periodically inspect the start relay and compressor area for signs of wear or damage. Catching problems early can save you from more significant repairs down the line.

Key Takeaways

  • Recognize the Signs: Be aware of symptoms like failure to start, unusual noises, compressor overheating, and burnt odors.
  • Test the Relay: Use a multimeter to test the relay’s resistance. Replace the relay if the resistance is outside the normal range.
  • Perform Regular Maintenance: Keep the refrigerator in top shape with routine cleanings and inspections.

By understanding how to diagnose and fix issues with your refrigerator’s start relay, you can ensure your appliance runs efficiently for years to come. Remember, if you’re unsure about conducting these tests or repairs yourself, it’s always advisable to consult with or hire a professional technician to help you out. Stay cool and keep your refrigerator running smoothly with the tips and tricks from TheKitchenApplianceDad.com!

Meet

Dale

Hi, I'm Dale! With over ten years in high volume restaurants, my journey has taken me through the ins and outs of using, maintaining, and even repairing virtually every kitchen appliance imaginable.

I'm here to share simple, straightforward advice to help you choose and use your kitchen tools effectively. No fluff, just the essential info you need to cook up a storm.