Sub Zero 650 "Service" message on LCD

SOURCE: sub-zero 650 / bottom freezer

Clean fluff from condensor, turn off overnight and defrost, turn back on following day should start to work ok within 24hrs. Regards Advisor

SOURCE: Sub-zero Fridge not cooling and ice forming

The leak in the system can be located by a number of methods. First I would look for a slight sign of oil at the point of the leak. 10% of the compressor oil circulates with the refrigerant. Although the refrigerant will leak out as a colorless, odorless gas and be invisible to sight it will leave an oil trace. Electronic leak detectors can detect leaks as small as .5 ounce per year. If the leak is large enough it can be detected with simple soap and water which will form bubbles at the leak point.

SOURCE: 650 sub zero that has a vacuum condenser message returns.

I have seen this many times and have fixed the problem many times. You may notice a ball of frost or ice build up in the fresh food compartment, This is because you have a leak in your evaporator coil and it needs to be replaced. It is a pretty costly repair but well worth it in consideration to what you paid for this unit or what the cost of a new one would be. Because it has less freon in it is why the compressor is running longer and causing message to pop up. Have the evaporator replaced in the section that is giving the issue and this will solve your problem with the unit.

SOURCE: vacuum condenser light of sub zero 650 is on - how to clean it

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 of 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. 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. 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.

SOURCE: Subzero--Vacuum Condenser Signal Won't Turn Off

The vacuum condenser indicator keeps flashing on and off. I did vacuum the unit, the the indicator lights keeps flashing on and off. How can I reset it and keep it off?
Thanks,
Rob