Sub-Zero 650 600 Series Refrigerator and Ice Maker Repair
Owners of the 650 often phone about two different things. One is the cabinet itself; the other is the built-in ice maker, which is a separate job even though it shares the box. Treating them separately saves time and money.
For cooling, we look for the familiar older-cabinet pattern: an uneven split between sides, or temperature that slips by afternoon, usually with the compressor audibly working harder. For ice, we start at the water supply and filter, because cloudy cubes or a slow harvest often come from water rather than from refrigeration.
This is a 600 Series unit with limited on-board diagnostics, so we rely on measured readings. Parts can still be ordered, with legacy items arriving slower than current ones.
It sits in the same cabinet, but a problem there often has nothing to do with cooling. We test the ice maker separately so you do not pay for the wrong repair.
Cloudy ice generally points to the water supply or filter, not to refrigeration. We check water quality and the inlet path before we look at freezer temperature.
Small temperature drift is worth catching early. A compressor that runs long or an uneven split between sides tells us a lot, and we measure both before recommending anything.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.
