Replacing a refrigerator thermostat might seem challenging, but learning how to replace a refrigerator thermostat is simpler than you’d expect. I’ve done it myself, and it’s easier than it looks. Start by unplugging the fridge to ensure safety. Make sure to gather all your tools and materials beforehand. With proper preparation, you’ll quickly understand how to replace a refrigerator thermostat without any hassle.
Key Takeaways
- Turn off the fridge and unplug it to stay safe. Use a voltage tester to check for electricity.
- Get all tools and items ready first. You will need screwdrivers, pliers, a multimeter, and a new thermostat.
- Read and follow each step closely. Installing the thermostat right helps your fridge cool properly.
Tools and Materials Needed for Replacing a Refrigerator Thermostat
Before starting, let’s go over the tools and materials. Having everything ready makes the job much simpler. Here’s what you’ll need:
Important tools for the job
You don’t need expensive tools, just some basics:
- Screwdriver set: Use flathead and Phillips screwdrivers to remove screws.
- Pliers: These help pull out wires or connectors easily.
- Multimeter: This checks voltage and ensures the thermostat works.
- Insulated gloves: Protect your hands from electrical parts.
- Safety goggles: Keep your eyes safe from unexpected debris.
- Thermometer: Use this to confirm the fridge cools properly after installation.
If you don’t have these, they’re available at hardware stores.
Materials you’ll need

Now, let’s list the materials. It’s a short but important list:
- Replacement thermostat: Make sure it fits your fridge model.
- Work gloves: Keep your hands clean and safe while working.
- User manual: Check it for specific instructions and diagrams.
That’s all! With these tools and materials, you’re ready to replace your refrigerator thermostat. Let’s move on to the steps!
How to replace a refrigerator thermostat? Step-by-Step Instructions
Step 1: Disconnect the power supply
Safety is the most important step! Unplug the fridge from the wall. If the plug is hard to reach, turn off the breaker. Use a voltage tester to check there’s no electricity. This makes sure the fridge is safe to work on.
Tip: Label the breaker or outlet so no one turns it on by mistake.
Step 2: Locate and access the thermostat
The thermostat is usually inside the fridge, near the back or top. Take out shelves or food that block your way. Once the area is clear, find the thermostat cover. It’s held by screws or clips. Use a screwdriver to remove them and open the cover.
Step 3: Remove the old thermostat
Carefully take out the broken thermostat. Use pliers to pull off the wires gently. If you’re unsure about wire placement, take a picture for later. Unscrew or unclip the thermostat and remove it. Don’t forget to slide out the sensing tube carefully if it’s in a sleeve.
Step 4: Install the new thermostat
Place the new thermostat where the old one was. Reconnect the wires, using your photo as a guide. If there’s a sleeve for the sensing tube, slide it back in. Secure the thermostat tightly with screws or clips. Make sure it’s properly aligned.
Step 5: Reassemble the refrigerator and restore power
Put the cover back on and return the shelves to their spots. Plug the fridge back in or turn the breaker on. Set the temperature and let it run for a few hours. Check if the fridge cools as it should.
Note: If the fridge isn’t cooling, check the wires again or call an expert.
Testing the New Thermostat
How to check if the fridge cools correctly

After putting in the new thermostat, make sure the fridge works. Here’s how:
- Put a thermometer inside the fridge and freezer.
- Wait a few hours for the temperature to settle.
- The fridge should stay between 35°F and 38°F. The freezer should be 0°F.
If you have a multimeter, test the thermostat directly. Set it to cold and check for low resistance. This shows the thermostat is working fine.
Tip: Don’t open the fridge too much during testing. It can change the temperature.
Signs the thermostat is working well
A good thermostat keeps your fridge running smoothly. Use this table to spot problems:
Problem Signs | What Happens |
---|---|
Uneven cooling | Some areas are too warm or too cold. |
Food spoiling fast | Food goes bad because of wrong temperatures. |
Display not responding | The screen doesn’t work, showing thermostat trouble. |
Fridge cycles too often | It turns on and off too much, wasting energy. |
Wrong temperature settings | Settings don’t match the fridge’s actual temperature. |
Frost buildup | Too much frost shows something is wrong. |
Warm fridge | The fridge feels warm instead of cool. |
Compressor issues | The compressor runs too much or not at all. |
If none of these happen, your thermostat is likely fine.
What to do if cooling still isn’t right

Sometimes, even with a new thermostat, the fridge might not cool well. Don’t worry—here’s what you can do:
- Check if the thermostat settings are correct.
- Clean the condenser coils to remove dust.
- Look at the evaporator fan for blockages.
- Listen for strange compressor sounds.
If the problem doesn’t go away, it might be something else. Issues like a broken compressor or bad door seals could be the cause. Regular care can stop these problems. Clean the fridge often, check the seals, and remove frost buildup. If nothing works, call a repair expert.
Note: Taking care of your fridge saves money and makes it last longer.
Changing a fridge thermostat is simpler than it looks. Follow these steps carefully to stay safe:
- Unplug the fridge to avoid electric shocks.
- Turn off the main power for extra safety.
- Be gentle with parts to avoid breaking them.
- Place the new thermostat properly for smooth cooling.
If problems continue, call an expert for help. With good planning, you can do this! 😊
Frequently Asked Questions for Replace a Refrigerator Thermostat
How do I know if my refrigerator thermostat is broken?
Look for signs like uneven cooling, frost buildup, or spoiled food. If the fridge feels warm, the thermostat might need replacing.
Can I replace the thermostat without professional help?
Yes, you can! Follow the steps I shared earlier. It’s straightforward with the right tools and preparation.
What happens if I install the thermostat incorrectly?
The fridge won’t cool properly. Double-check wire connections and placement. If unsure, consult the user manual or call an expert.