San Rafael Sub-Zero
A Viking range is a fixture in the entertaining kitchens around Dominican and the gut-renovated homes of Gerstle Park, and the call we hear most about it is baking that has gone uneven — one tray of cookies pale at the edges while another scorches.
It feels like the oven is failing. Most of the time it is one of two ordinary parts, and the fix is bounded.
Pale next to scorched: look at the convection fan
When one side of a rack browns and the other stays pale, the usual cause is the convection fan no longer moving air evenly — a fading fan motor, a hairline crack in a fan blade, or an element pushing air the wrong way. We rebuild balanced circulation so both racks color evenly, which matters most in the big entertaining kitchens common around the Dominican estates, where a full oven of trays has to come out right.
Everything runs hot or cold: it's probably the sensor
If the whole cavity overshoots or undershoots the dial rather than browning unevenly, the resistance-temperature sensor has likely drifted. We have noticed this surface sooner in the warm Terra Linda and Sun Valley flats, where the kitchen's higher ambient works the sensor harder. We read its resistance against the factory curve, fit a new one only when the numbers fall out of tolerance, and watch the cavity hold its setpoint before we pack up — no swapping parts on a hunch.