Common fault
Why is my wine cooler not holding temperature?
Short answer
The number that matters is the one at the bottles, not the one on the panel. Wine cabinets fail quietly: the display holds at the set point while the racks sit several degrees warm. Carlsbad Sub-Zero Specialists, Carlsbad: (858) 779-0698.
The reasoning behind that
On a dual-zone column, one zone holding while the other drifts puts the fault in that zone’s evaporator, fan or damper.
How the diagnosis goes
What we check, in order: a probe reading at rack height in each zone, compared against what the panel claims; whether the circulation fan in the drifting zone is turning at all; the damper; the zone sensor against spec; and the condenser, which on a cabinet built into bar joinery is very often the entire answer. Only after all of that does anything in the sealed system get discussed, let alone quoted.
The reason the panel lies is that the sensor reports from a spot the circulating air actually reaches. Fog on the inside of the glass is a separate fault again, and in Carlsbad it is usually the door seal or the pane heater rather than anything in the cooling circuit. Carlsbad splits neatly on this one. Along the coast, in Olde Carlsbad and the streets west of the freeway, the complaint is almost always humidity: fogged glass, a gasket that has stopped pulling flat, condensation running down the front of the racks. Inland, in La Costa and Bressi Ranch, the complaint is heat, because the cabinet is usually set into a bar or a butler's pantry with very little clearance and those rooms run warmer in the afternoon than the unit was specified for.
If that matches what yours is doing, say so when you call — it decides which parts come on the van.
Appliance down in Carlsbad?
Tell us the brand and what it is doing — we can usually name the likely repair before we arrive.
Questions
Frequently asked questions
Do you answer the phone at night and on weekends in Carlsbad?
Yes, 24 hours a day, every day. Refrigeration is the reason: a freezer that fails on a Saturday evening in Aviara has spoiled everything worth keeping by Sunday. Same-day slots are available most days, and if the day is genuinely full you hear that on the phone rather than afterwards. Carlsbad Sub-Zero Specialists, Carlsbad: (858) 779-0698.
My refrigerator is warm but the freezer is still frozen solid. Is the compressor gone?
Almost certainly not. The two compartments of a Sub-Zero built-in are cooled by circuits that share no refrigerant, so a freezer still hard-frozen has proved the cold side of the machine is working. What is left is the refrigerator circuit: its evaporator fan, a defrost failure furring that coil, or a thermistor reading out of range. Carlsbad Sub-Zero Specialists, Carlsbad: (858) 779-0698.