5 Common Sub-Zero Compressor Problems (and How to Fix Them)

Sub-Zero refrigerators are strong and look nice. But like all fridges, they can have problems. The biggest one is Sub-Zero compressor problems. When the compressor doesn’t work, the fridge can’t stay cold. Food can spoil, and your electric bill can go up.

If you live in Austin or nearby and your Sub-Zero fridge seems off, this guide is for you. We’ll talk about the most common Sub-Zero compressor problems, and also about Sub-Zero evaporator coil issues, and tell you when it’s time to call Sub-Zero Appliance Repair Center.

What Does a Compressor Do?

The compressor is like the fridge’s motor. It moves cold gas through the fridge to keep things cold. If it stops working, your fridge gets warm.

1. Compressor Keeps Running

Problem: The compressor doesn’t turn off. It runs all the time.

Signs:

• Your electric bill is higher
• Fridge doesn’t feel cold enough
• Humming sound that doesn’t stop
• The display shows error codes EC 50 or EC 40.

Fix: A technician will clean the coils, check the sensors, and add more gas if needed. If that doesn’t fix it, they may replace the compressor.

This is one of the most common Sub-Zero compressor problems.

2. Compressor Won’t Start

Problem: The fridge is warm because the compressor doesn’t turn on.

Signs:

• Clicking or buzzing sounds
• Warm food
• Big temperature changes

Fix: This is a serious Sub-Zero compressor problem. A technician will check it and might need to replace it. This work can be dangerous, so don’t try to do it yourself.

3. Compressor Starts and Stops Often

Problem: The compressor turns on and off too much.

Signs:

• Sometimes cold, sometimes warm
• Food spoils quickly
• Clicking noises

Fix: This could be a bad sensor or a problem with the fridge’s brain (control board). A tech from Sub-Zero Appliance Repair Center in Austin can check it and fix it.

4. Overheating Compressor

Problem: The compressor is very hot.

Signs:

• It smells hot or burned
• Loud buzzing
• Fridge doesn’t cool

Fix: Turn off your fridge and call a tech right away. This kind of Sub-Zero compressor problem could break your whole fridge.

5. Sub-Zero Evaporator Coil Issue

Problem: Ice forms on the coils, or the fridge doesn’t stay cold.

Signs:

• Frost on the back wall
• Water inside the fridge
• Food freezing in weird spots

Fix: The defrost system may be broken. A tech will check the heater, thermostat, and timer. This Sub-Zero evaporator coil issue makes the compressor work too hard, which causes more Sub-Zero compressor problems.

Why You Should Call a Pro

Trying to fix Sub-Zero compressor problems yourself can make things worse. Call Sub-Zero Appliance Repair Center because:

• They have the right tools
• They use real Sub-Zero parts
• They work fast
• They protect your warranty

Need Help in Austin or Nearby?

If your fridge isn’t cold, call Sub-Zero Appliance Repair Center at (512) 798-0117. We fix all Sub-Zero compressor problems and Sub-Zero evaporator coil issues in Austin and nearby places. Our expert techs will fix your fridge fast. Besides the compressor issues, we repair and service all the other issues, including Sub-Zero water leak issues.

FAQs About Common Evaporator and Compressor Issues