FN Field Notes
Notes off the bench
Longer pieces that sit under the two reference boards. Each one takes a single fault further than a code page can, from how the older series defrost to why the river decides the first check on an ice call.
- 01 Sub-Zero Refrigerator Water Pressure: What the Supply Line Needs Depending on the model, a Sub-Zero refrigerator needs either 20-100 psi or 35-120 psi at its water supply; Classic (CL) units ask for 35-120 psi through a 1/4-inch line and a shut-off valve you can reach. A plumber's gauge confirms it.
- 02 Six Grains on One Side of the Sammamish River, 1.2 on the Other: Reading a Redmond Ice-Maker Fault by Address Redmond runs two waters: roughly 90 mg/L, about 6 grains, on the city groundwater system, and roughly 20 mg/L, about 1.2 grains, on Tolt supply, divided by the Sammamish River. The same ice fault therefore starts with a different first check by address.
- 03 Sub-Zero Ice Maker Stopped Producing: A Redmond Diagnostic Order When a Sub-Zero ice maker quits, the module is rarely the fault. Work through supply, fill, freeze and harvest in that order and you will usually find the real cause before spending anything.
- 04 Sub-Zero Freezer Frosting Over Again: Reading the Defrost Circuit Frost sheeting the back panel of a Sub-Zero freezer within days of clearing it is a defrost fault, not a door problem. How to read the circuit, what usually fails, and when the part is worth ordering.
Next step
Series, readout,
then a price
Give us the model off the tag and whatever the display is showing. When the fix is a clean condenser or a reset you can do yourself, you will hear that on the phone. When it needs a technician, the visit is $89 and it comes off the repair bill; the price for the work is in writing before anything is opened.
Sub-Zero Repair Redmond · on site 0800 to 2000 hrs, all seven days · calls taken 24/7