Seasonal Maintenance for Sub-Zero Appliances

Seasonal Maintenance for Sub-Zero Appliances

Sub-Zero is a brand of high-end refrigeration, wine storage, and cooking appliances that are designed to offer the best performance and durability. However, even the most reliable appliances need some seasonal maintenance to keep them running smoothly and efficiently. In this article, we will share some tips on how to care for your Sub-Zero appliances in different seasons and prevent common problems. If you’re in Santa Ynez and need Sub-Zero refrigerator repair, our partnered professionals are at your service.


Spring is a good time to do some deep cleaning and check-up on your Sub-Zero appliances. Here are some tasks you can do in spring:

  • Clean the refrigerator coils. The coils are located behind the grille at the bottom or top of the refrigerator. They help to dissipate heat and keep the refrigerator cool. However, over time, they can accumulate dust, dirt, and pet hair, which can reduce their efficiency and cause the refrigerator to work harder. To clean the coils, you will need a vacuum cleaner with a brush attachment and a coil cleaning brush. Unplug the refrigerator and remove the grille. Use the vacuum cleaner to remove any loose debris from the coils. Then use the coil cleaning brush to gently scrub the coils and remove any stubborn dirt. Be careful not to damage or bend the coils. Replace the grille and plug in the refrigerator.
  • Replace the water filter. The water filter is located inside the refrigerator, either in the upper right-hand corner or behind the kickplate at the bottom. It helps to remove impurities and contaminants from the water that goes to the ice maker and dispenser. However, over time, the filter can get clogged and reduce the water flow and quality. To replace the water filter, you will need a new filter that matches your refrigerator model. Turn off the water supply to the refrigerator and release any water pressure by dispensing some water or ice. Locate the filter and twist it counterclockwise to remove it. Discard the old filter and insert the new one. Twist it clockwise until it locks into place. Turn on the water supply and flush about two gallons of water through the filter to remove any air bubbles and carbon particles.
  • Clean the oven interior. The oven interior can get dirty from spills, splatters, and grease that can affect its performance and appearance. To clean the oven interior, you will need a damp cloth, a soft-bristled brush, a non-abrasive cleaner, and a razor blade scraper. Make sure the oven is cool before cleaning it. Remove any racks, pans, or accessories from the oven. Wipe down the oven walls, floor, ceiling, door, and gasket with a damp cloth to remove any loose debris. Apply some non-abrasive cleaner to any stains or baked-on food residue and let it sit for a few minutes. Use the soft-bristled brush to scrub away any stubborn dirt. Use the razor blade scraper to carefully scrape off any remaining residue. Rinse off any cleaner with a damp cloth and dry with a soft cloth.


Summer is a season of high temperatures and humidity, which can affect your Sub-Zero appliances in various ways. Here are some tasks you can do in summer:

  • Adjust the refrigerator temperature. The refrigerator temperature may need to be adjusted depending on the ambient temperature and humidity level in your home. If it is too warm or humid outside, you may need to lower the refrigerator temperature to prevent food spoilage and ice buildup. If it is too cool or dry outside, you may need to raise the refrigerator temperature to prevent excessive energy consumption and frost formation. The recommended temperature range for Sub-Zero refrigerators is 34°F to 40°F for fresh food compartments and -5°F to 5°F for freezer compartments. You can adjust the temperature using the control panel on your refrigerator door or drawer.
  • Check the door seals. The door seals are rubber gaskets that form an airtight seal between the door and the cabinet of your Sub-Zero appliance. They help to prevent cold air from escaping and warm air from entering, which can affect the appliance’s efficiency and performance. However, over time, the door seals can wear out, crack, or loosen, which can cause air leaks and condensation problems. To check the door seals, you will need a dollar bill or a piece of paper. Close the door on the bill or paper and try to pull it out. If it slides out easily or falls out, then there is an air leak in that area of the seal. Repeat this test around all four sides of each door or drawer. If you find any damaged or loose seals, you may need to replace them or contact a professional service technician.
  • Clean the wine storage unit. The wine storage unit is designed to store your wine collection at optimal temperature and humidity levels for long-term preservation and enjoyment. However, dust, dirt, mold, and odors can accumulate inside the unit over time, which can affect the quality and taste of your wine. To clean the wine storage unit, you will need a vacuum cleaner with a soft brush attachment, a damp cloth, a mild detergent, and a soft cloth. Unplug the unit and remove any wine bottles and shelves from the unit. Use the vacuum cleaner to remove any dust or debris from the interior and exterior of the unit. Wipe down the interior walls, floor, ceiling, door, and gasket with a damp cloth and a mild detergent. Rinse off any detergent with a damp cloth and dry with a soft cloth. Wipe down the exterior of the unit with a damp cloth and dry with a soft cloth.


Fall is a season of transition and preparation for winter. Here are some tasks you can do in fall:

  • Check the ice maker. The ice maker is a convenient feature that provides you with fresh ice cubes whenever you need them. However, if the ice maker is not used regularly or properly maintained, it can develop problems such as low ice production, poor ice quality, or ice clumping. To check the ice maker, you will need a thermometer, a plastic container, and some vinegar. Fill the plastic container with water and place it in the freezer for about two hours. Check the temperature of the water with the thermometer. It should be below 15°F for optimal ice making. If the temperature is too high, you may need to lower the freezer temperature or contact a professional service technician. Remove any ice cubes from the ice bin and inspect them for size, shape, and clarity. They should be uniform, clear, and free of any odor or taste. If the ice cubes are too small, too large, cloudy, or have an unpleasant odor or taste, you may need to clean the ice maker or replace the water filter. To clean the ice maker, you will need to turn off the ice maker and remove the ice bin. Fill a spray bottle with one part vinegar and one part water and spray the solution on the ice maker components such as the ejector arm, the ice mold, and the water inlet valve. Let it sit for a few minutes and then wipe off any residue with a damp cloth.
  • Clean the range hood. The range hood is an appliance that helps to remove smoke, steam, grease, and odors from your cooking area. However, over time, the range hood can get dirty and greasy, which can reduce its effectiveness and create a fire hazard. To clean the range hood, you will need a degreaser, a sponge or cloth, a soft-bristled brush, and some paper towels. Unplug the range hood and remove any filters or screens from it. Spray some degreaser on the filters or screens and let it soak for a few minutes. Then scrub them with a sponge or cloth to remove any grease or dirt. Rinse them with warm water and dry them with paper towels. Spray some degreaser on the interior and exterior of the range hood and wipe it down with a sponge or cloth. Use a soft-bristled brush to clean any hard-to-reach areas such as vents or corners. Rinse off any degreaser with a damp cloth and dry with paper towels.
  • Test the oven self-cleaning feature. The oven self-cleaning feature is a convenient way to remove any baked-on food residue or grease from your oven interior without using any harsh chemicals or scrubbing. However, before you use this feature, you should test it to make sure it works properly and safely. To test the oven self-cleaning feature, you will need an oven thermometer, some aluminum foil, and some paper towels. Place the oven thermometer in the center of the oven rack and cover it with some aluminum foil to protect it from overheating. Remove any racks, pans, or accessories from the oven except for one rack that holds the thermometer. Wipe down any loose debris from the oven walls, floor, ceiling, door, and gasket with paper towels. Close the oven door and lock it if necessary. Set the oven to self-clean mode and select a cleaning time according to your oven manual. The oven will heat up to very high temperatures and burn off any residue or grease inside. When the cleaning cycle is over, let the oven cool down completely before opening it. Check the oven thermometer to see if it reached at least 800°F during the cleaning cycle. If not, you may need to contact a professional service technician to check your oven’s heating element or thermostat.