A Viking range or built-in refrigerator rarely fails on a quiet day — it goes down the morning before a tasting-room lunch or a full house off the Plaza. That is the call we take most in Sonoma: a pro Viking unit that ran for years and now needs a specialist, not a generalist guessing at a $6,000 appliance.
The local housing stock makes every install its own puzzle. The thick-walled adobes and East Side Victorians near Spain Street were never framed for a 48-inch pro range. Up Highway 12 through Boyes Hot Springs and into Glen Ellen and Kenwood, harder well water and the long dry summer age a sealed system and an oven sensor fast. Whatever the symptom, we diagnose first and quote a clear price before any work. To book, call (628) 209-6820.
We are an independent repair company, not affiliated with or authorized by Viking, and not factory-certified.
What we service
Viking product families in Sonoma
Viking Refrigeration
Built-in and column refrigerators run by the sealed system: compressor, evaporator and condenser fans, defrost heater and drain, door gasket, air damper, and the thermistor reading cabinet temperature. When the fresh-food side warms while the freezer holds, we check the damper, fan, or thermistor before the compressor. (Viking freezer drawers and wine units share this sealed system too.)
Viking Stove, Range & Cooktop
The gas deck: sealed and open burners, spark module and igniters, porcelain and cast-iron grates, and the brass orifice and VariSimmer setting that idle a Viking at a true low flame. Runaway heat or an uncontrollable simmer traces to a failing surface valve, a fouled igniter port, or a worn surface control.
Viking Oven
The cavity in Viking ranges and wall ovens: bake and broil elements, the glow-bar igniter on gas models, the RTD sensor, the convection fan, and the door hinges and spring that keep the seal tight. Drifting temperature, a mid-roast shutoff, or a sagging door points to the RTD sensor, a tripped thermostat, or worn hinges — and we finish with a true calibration.
Common faults
Viking problems we fix
Water dispenser slows to a trickle, then quits
Usually a kinked or frozen supply line and a weak inlet valve. We reroute the line and fit a genuine valve so flow returns.
Compressor short-cycling and food starting to thaw
A compressor clicking on and off while the cabinet warms is rarely the compressor — most often a failed start relay and overload protector. We fit genuine parts and restore a normal run cycle.
Burner runs wild and the knobs get too hot
When a burner can't be turned down and the knob markings peel, a surface valve is passing too much gas. We fit a genuine valve so VariSimmer is controllable again.
Oven shuts itself off mid-roast
An oven that dies partway through a roast is usually an overheating control thermostat tripping the safety. We fit a genuine thermostat and verify the cavity holds steady.
Oven door won't latch and heat leaks out
Worn hinges and a failed door spring let the door sag, so it won't latch and heat escapes. We fit OEM hinges and spring, realign the door, and confirm a tight seal. (A stuck air damper or drifting thermistor causes the matching uneven-cooling complaint on the fridge side.)
Reviewed by Sonoma-area owners
Viking repairs, in customers' words
★★★★☆
Water dispenser on our Viking slowed to a trickle and then quit. The tech found a kinked, partially frozen line and a weak inlet valve. He replaced the valve with a genuine part and rerouted the line. Flowing again. Needed a follow-up visit for the part, but he kept me posted throughout.
— Trent B., Los Gatos
★★★★★
Heard the Viking compressor cycling on and off rapidly and the food started thawing. The tech tested and found a bad start relay and overload protector. He installed genuine parts and the compressor settled into a normal cycle. Cold within hours. Same-day visit saved a freezer full of food.
— Veronika S., Los Gatos
★★★★★
Knobs on our Viking range got so hot the markings were peeling, and one burner ran wild. The tech found a failing valve letting too much gas through and replaced it with a genuine Viking valve. Simmer is controllable again. Friendly, fast, and the labor's backed for a year.
— Tomas V., Sonoma
★★★★★
Oven on our Viking range kept shutting off after twenty minutes. The tech traced it to an overheating control thermostat tripping the safety. He installed a genuine thermostat and it's held steady through long roasts since. Booked it the next morning. Honest diagnosis, no parts I didn't need.
— Vincent O., Sonoma
★★★★★
The oven door on our Viking wouldn't latch and heat leaked out the top. The technician found worn door hinges and a failed door spring. Both were replaced with OEM parts and he adjusted the alignment. Door seals tight now and preheats fast. Backed by a year labor warranty too.
— Megan P., San Mateo
Why Sonoma Sub-Zero Repair
Specialist Viking service across Sonoma Valley
Independent high-end specialists since 2005, working Viking full-time
Genuine OEM parts keyed to your model and serial, fitted into the tight cabinetry of Sonoma's adobes and Victorians
Faults diagnosed by meter — start relay, thermistor, surface valve, RTD sensor — so we replace the failed part
Every repair backed by a 365-day parts-and-labor warranty, with a clear price before any work
An independent company, not affiliated with or authorized by Viking, and never claiming to be factory-certified
FAQ
Viking repair questions
Are you a Viking-authorized service center?
No. We are an independent repair company specializing in high-end appliances since 2005. We use genuine OEM Viking parts, but we are not affiliated with or authorized by Viking and not factory-certified — and we never claim to be.
Which Viking appliances do you repair?
Three categories: refrigeration (built-in and column refrigerators, plus freezer drawers and wine storage on the same sealed system), stoves, ranges and cooktops, and ovens — both the oven inside a range and standalone wall ovens.
My compressor keeps cycling and food is thawing — can you come quickly?
Yes. Short-cycling is a same-day priority because a warming cabinet can cost a freezer full of food. It is usually a failed start relay and overload protector, not the compressor. We carry the parts and restore a normal cycle.
What does Viking repair cost in Sonoma, and how is the warranty handled?
It depends on the part — a start relay or RTD sensor is modest; a sealed-system or control repair sits higher. The diagnostic fee is $89, we quote before any work, and every repair carries a 365-day parts-and-labor warranty.