Vacuum condenser warning flashes despite my having vacuumed.

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: SubZero 650 - fridge 36 to 50 deg, vac condensor light flashing

Hi!! you have a seal system problem.A leak in the evaporator..

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: vacuum condenser is flashing

this means your condensor on the back of the unit that pumps the freon needs to be vacuumed. It may be dusty or not getting air flow to cool it off. Also vacuum all your coils on back of unit

SOURCE: My Subzero Condenser fan runs constantly - but coils are clean

If it is similar to mine at home (Model 550) the condensor fan is designed to run continuously, even when both the freezer and refrigerator are shut off. There is no control or switch in the fan circuit, so it just runs whenever the fridge is plugged in to the wall. It uses about 56 watts.