Refrigerator Running Constantly or Making Loud Noise
Likely causes
- ✓Condenser coils covered in dust, forcing the compressor to work harder
- ✓Failing evaporator or condenser fan motor
- ✓Ice buildup on the evaporator fan blades
- ✓Worn compressor start relay or aging compressor
- ✓Refrigerator not level, causing vibration against cabinets
The short answer: a fridge that runs nonstop is usually working harder than it should. Dusty condenser coils are the most common cause, and Las Vegas dust builds up fast.
Loud rattling or buzzing often means a fan.
What usually causes it
- Dusty condenser coils. The compressor runs longer to shed heat.
- Failing fan motor. Rattling, buzzing or squealing from the back or freezer.
- Ice on the evaporator fan. The blades hit the frost and make noise.
- Weak start relay or aging compressor. It may click, hum or cycle often.
- Out of level. Vibration against cabinets or walls amplifies normal sounds.
What you can check yourself
- Clean the condenser coils. Unplug it and vacuum them at the back or under the front grille.
- Level it. Make sure it isn’t rattling against walls or cabinets.
- Check the door seals. A leaky seal makes it run constantly.
- Locate the noise. The freezer back wall suggests the evaporator fan; the bottom or back suggests the condenser fan or compressor.
How to prevent it
- Vacuum the coils twice a year.
- Level the fridge and keep a little space around it.
- Replace worn door gaskets so it doesn’t run constantly.
When to call a technician
Call us if:
- The coils are clean and it’s still loud
- It runs constantly but isn’t cooling well
- You hear clicking, then silence
These repairs involve live voltage, gas or hidden parts, so we recommend leaving them to a professional.
Service call: $89, waived when you go ahead with the repair. Warranty: 90 days on every repair.
Frequently asked questions
Why does my refrigerator run constantly?
Dusty coils, a leaky door seal or a failing fan are the usual causes.
Is a buzzing refrigerator dangerous?
Not usually, but it can signal a failing fan or compressor. If it stops cooling, call for service.
Is some noise normal?
Yes. Gurgling, humming and the occasional click from defrost or the ice maker are common.
This is one of the issues covered under our Refrigerator Repair service.