Sub-Zero · Sammamish
Sub-Zero freezer columns and freezer drawers that frost over, let food soften while the display looks right, or will not close flush.
A frost-free freezer clears its evaporator at intervals, using a heater, a thermostat that ends the cycle and a sensor that reports the coil temperature. When one of them fails the frost stays, grows and eventually blocks the air. A manual defrost only buys time; the repair itself sits in the defrost band on this page.
Sub-Zero Repair Sammamish · (425) 610-8986
The display reports what its sensor sees, which is not always what the food sees. A fan that has stopped, frost across the coil or a door that no longer seals can leave the load warm while the reading looks right. A separate thermometer set among the food shows which of the two to believe.
Sub-Zero Repair Sammamish · (425) 610-8986
A freezer drawer closes against its gasket on its slides. Ice building on the frame means room air is getting in. Check that nothing inside stands proud of the drawer front; if it still will not close flush, the gasket or the slides are the repair.
Sub-Zero Repair Sammamish · (425) 610-8986
If the compressor runs without a break and the cabinet still struggles, the unit is fighting a load: a dusty condenser, a door that leaks air, or a sealed system that has lost capacity. The first two are quick to find and inexpensive; the third is measured under gauges before it is priced.
Sub-Zero Repair Sammamish · (425) 610-8986
Temperatures logged in the cabinet and at the evaporator, the defrost circuit taken through a cycle, both fans and the door seals checked, and gauges on the sealed system when the signs lead there. You come away with the cause and one parts-and-labour figure; the bands below show where that figure is likely to fall.
What it costs
The $89 service call pays for the trip out and a complete diagnosis of the unit, and all of it is credited toward the repair once you give the go-ahead.
Each band is what that kind of repair has come to in Sammamish kitchens. Your own unit gets one firm parts-and-labour number once it has been diagnosed, written down before a panel comes off, and that number is the one on the invoice.
Three things place a job inside its band: which part your model takes, whether the unit must be rolled out of its opening to reach the fault, and whether a part has to be ordered to your serial number. When a big repair and a new unit start to look alike, the repair-or-replace pages set the two side by side.
From the plateau
Collected after the invoice, edited only for length.
4.9 / 5597 reviews
Frost kept coming back and two earlier visits by somebody else only ever scraped it away. This time the drain trough was iced solid and the door sat a hair out of square. Both put right.
A sheet of frost on the back wall days after I defrosted the whole thing by hand. He metered the defrost heater, found an open circuit, and had the replacement on the van. None since.
Freezer was frosting over every couple of weeks. He traced it to a defrost terminator rather than just scraping the ice out and calling it done. Six months on, no frost at all.
Book a diagnosis
That is enough to start. Sub-Zero Repair Sammamish finds the cause first, gives you one figure, and only then picks up a tool.
