A refrigerator can develop a wide range of issues. But how do you know if it’s time to call a technician or whether there’s a simple fix? Find out how to troubleshoot your fridge to correct an issue or help a technician who arrives to perform Sub Zero refrigerator repair.

How you start troubleshooting depends on the issue you’re having. Common refrigerator issues, along with some troubleshooting tips, include:

The Refrigerator Isn’t Cooling Like Normal

It may also seem to be working harder than usual. But the temperature isn’t getting cool enough. If this is so, check for:

  • Dirty Condenser Coils: When dirty, the coils can’t dissipate heat effectively, causing your fridge to be less efficient. Clean the coils with a vacuum cleaner or coil brush.
  • Obstructions in the Fan Motor: If something is stuck in the motor, remove it. Otherwise, use a multimeter to test for continuity; if there is none, the motor must be replaced.
  • Evaporator Fan Motor Stopped Working: Cold air won’t circulate in the refrigerator (but the freezer will still be cold). The blade should turn freely by hand; if not or it’s noisy, it should be replaced.

Other less common reasons for a lack of cooling include a defective compressor, control board, or start capacitor. Also, if the unit is running warmer, check whether the control is set properly, if a lot of food was recently added, or if any doors or drawers have been open.

The Freezer Is Icy

Even though your unit is “frost-free”, the freezer may get frosty if you accidentally leave the door open. Clean off the frost and close the door. If the frost tends to recur, check the:

  • Door Seal: If there’s grime in the seal, clean it off. A damaged seal may not make proper contact, allowing air to flow in and out of a closed door. Call a professional to replace it.
  • Defrost Control Board: If it’s not working, the refrigerator can’t go into a defrost cycle and the part will need to be replaced.
  • Defrost Timer: This is what turns on the defrost heater. To troubleshoot it, slowly move the dial to control the defrost cycle; if the compressor stays on and the heater won’t run, the timer won’t send power to the defrost system.

It’s also possible the defrost heater assembly doesn’t have continuity or the defrost sensor has failed. The defrost thermostat or main control board may also be defective, so you’ll need Sub-Zero refrigerator repair.

The Refrigerator Stops Working

Rather than assume the unit has failed:

  • Check that the power is on at the unit and the circuit breaker.
  • Switch the fridge on at the control at the top right of the back wall.
  • See if it’s in defrost mode; if so, wait a half hour for it to restart.

The Ice Maker Doesn’t Work

Ice makers sometimes develop issues, but there are often simple solutions if one isn’t working. Before assuming there’s a serious problem:

  • Use the control panel to turn it on.
  • Check that it’s connected to the water supply. 
  • Move the ice container into the proper position.

The Unit Is Running Longer Than Normal

The unit will only run when the temperature is higher than the set level. If the system is running for longer, look at the weather conditions. It can be harder to maintain cooler temperatures on a hot day. Also:

  • Look for obstructions in the door or any drawers.
  • Examine the condenser area for dirt.

Contact Wilshire Refrigeration & Appliance

Our technicians are factory certified to fix any problem with a Sub-Zero refrigerator. Most issues can be repaired quickly when you are unable to quickly troubleshoot and resolve them on your own. To request Sub-Zero refrigerator repair in Los Angeles, call 800-427-3653 today.