We recommend vacuuming your condenser every 3 - 6 months. Cleaning the condenser is important for the overall operations of the unit including cooling functions. A dirty condenser may lead to warm temperatures in the refrigerator and freezer. It may also cause the unit to run excessively. It may contribute to condensation or frost inside the compartments. If the condenser is not cleaned properly it may even cause premature failure of mechanical components in the unit. Condenser Cleaning - All Models Before cleaning the unit, shut the electricity off at the control panel. When you clean the condenser, wear gloves to avoid injury from the sharp condenser fins. Use a soft bristle brush and vacuum to remove dust and lint from the condenser. To avoid bending the condenser fins, be sure to vacuum in the direction of the fins, up and down. Clean the condenser every three to six months or sooner if you have pets. 600 Series Framed and Stainless Steel louvered grilles: First remove the grille screws located at the bottom of the grille. NOTE: These screws (Phillips head) are accessed with the doors open. Tilt the top of the grille forward and release the springs from behind the grille, then lift off. Overlay Panel Grille: To remove, lift up then pull out at the bottom and down to release from its mounting bracket. Models 601R, 601RG and 601F Louvered Grille: Remove the two black screws in the lowest louver of the grille. Tilt the bottom of the grille out and away. It will release from the top of the grille. Model 601RG Stainless Steel Grille: Remove in a similar fashion as the overlay grille panel. 700 Series All Units: At the bottom of the unit, remove the four screws holding the kick plate/grille in place. It will then slide forward, giving you access to the condenser area. 400 Series 424/424FS At the bottom of the unit, remove the screws holding the kick plate. The condenser is located behind. 427/427R: Remove the four screws holding the kick plate/grille in place. It will then slide forward, giving you access to the condenser area. 430: First remove the screws located at the bottom of the grille. NOTE: These screws (Phillips head) are accessed with the door open. Tilt the top of the grille forward and release the springs from behind the grille, then lift off. 200 Series 245, 249, 315W Remove the kick plate at the bottom of the unit, giving you access to the condenser area.

To convert Fahrenheit (°F) to Celsius (°C) turn the unit off then back on. Within the first minute after turning the unit ON, press and hold the ALARM key and the POWER key simultaneously for five (5) seconds, then release. A “c“ will appear in the upper right of the temperature readings on the LCD.. Please note that changing from Celsius to Fahrenheit is the same procedure.

On average, you can expect a cycle of ice (eight cubes) every two hours. The max ice feature increases the rate of ice production for times where you need more than normal. The increased ice production will last for 24 hours, at which time it will return to the normal production level. You can expect about a 40% increase in ice production when this feature is turned on. To initiate the max ice feature, press the MAX ICE key pad on the control center so that the indicator (3 cubes) is visible in the display panel.

A vacuum seal is created when the door is closed. This was designed so your unit will have an air tight seal. Your door may be difficult to open for a short period of time while the pressure equalizes.

The electronic control system monitors temperatures as well as the the unit’s operation. If there is a temperature or operation problem, you will notice the word SERVICE or wrench icon illuminated in the LED display on the control panel. Before calling for service, please check to see if your condenser area needs cleaning. Sub-Zero service can be reached toll free at 800.222.7820.