Expert advice, troubleshooting guides, and maintenance tips for all your appliances
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Viking built-in freezer not reaching temperature? Compressor, evaporator, and sealed system diagnostics for Viking Professional freezer columns and combo units.

Viking dishwasher leaving food residue? Spray arm, wash motor, and water temperature diagnostics for Viking Professional and Designer dishwashers.
A Viking burner that won't light is most often a worn igniter. One test splits the diagnosis: if no burner clicks, the spark module is dead; if one won't catch, it's that burner's igniter or ports.

Frost building up in a Viking freezer usually means the defrost heater has failed, the defrost timer or adaptive board isn't cycling, or the door gasket is letting humid air in. This guide ranks the causes and shows how to test the defrost system.
Most likely: a failed igniter — it is the most frequently replaced part when a Thermador burner won't light. On the cooktop that is the ceramic spark electrode; in the oven it is the hot-surface igniter that must glow bright (reaching 1800-2500 degrees F) to draw enough current to open the gas…

Most likely: the AquaStop flood protection has tripped an E15 with water sitting in the base pan, or a worn door gasket is letting water past the seal. A leaking pump or tub seal is the deeper cause. Thermador shares the Bosch BSH platform, so parts and diagnosis carry over.

Most likely the spray-arm jets are clogged with scale or food, or the triple filter is overdue and recirculating debris. Beyond those, a worn circulation-pump impeller drops water pressure, a failed ProHeat element leaves the water too cool to clean, or the detergent dispenser is not opening. Filter and spray arms are the first, free checks.
A brief whiff as a burner lights is normal, but a persistent gas smell, or any odor when every burner is off, is not. The most common real cause is a loose flexible gas connector, then a burner not fully lighting, a valve that will not close, a cracked burner tube, or the oven safety valve seeping. If the smell is strong, shut the gas, evacuate, and call the utility.

A Viking gas burner that keeps burning with the knob off is a safety hazard — shut off the gas at the wall valve immediately. The usual cause is a grease-fouled gas valve, sometimes a damaged knob or a broken valve spring. Safe diagnosis steps.

Most likely: the door gasket is worn or torn so the door no longer seals, or the tub seal is leaking at the pump mount. Diagnosis for the gasket, tub seal, spray-arm bearing, latch, and inlet valve on Viking Professional and Designer dishwashers.

Viking ice maker leaking onto the floor or inside the unit? A stuck inlet valve is the usual cause. How to trace the leak to the valve, fill tube, supply line, or drain — and stop the water damage.

Thermador PRO Harmony or PRO Grand oven not heating? Diagnose the Star Burner igniter, BSH control board, convection element, and E-series codes on gas and dual-fuel ranges.

Viking Professional cooktop flame uneven, yellow, or weak? High-BTU burners carbonize their ports fast — plus air-shutter, regulator, cap, and LP-orifice causes on Viking gas cooktops.
Appliance repair technicians overwhelmingly avoid Samsung for their own homes. Here's the service data behind why — and what brands they actually recommend.

Samsung washing machine won't turn on or start a cycle? Diagnosis of control board failures, door lock faults, and power supply issues on WF45/WF50/WA50...

Speed Queen dryer making noise? On these commercial-grade dryers it's usually a drum roller, belt, or blower wheel. Diagnose by the sound and fix it right.

Speed Queen dryer won't start? Expert diagnosis of common causes, model-specific fixes, and repair costs for Speed Queen dryers. Book same-day repair.

Speed Queen washer making noise? On these commercial-grade machines it's usually a tub bearing, drain pump, or belt. Diagnose by the sound and cycle phase.

Speed Queen washer vibrating excessively? Expert diagnosis of common causes, model-specific fixes, and repair costs for Speed Queen washers. Book same-day repai

Speed Queen washer won't spin? Diagnosis of transmission gear failures, clutch assembly wear, and timer issues on Speed Queen TR/TC series commercial-grade...

Sub-Zero freezer excessive frost or ice buildup? Diagnosis of defrost heater failures, timer malfunctions, and door gasket issues on Sub-Zero BI-36U.

Sub-Zero freezer buzzing, humming, or clicking? Diagnosis of condenser fan, evaporator fan, and compressor mount sounds on Sub-Zero built-in freezer columns.

Sub-Zero freezer compressor never stops running? Diagnosis of dirty condenser coils, worn door gaskets, and thermostat failures on Sub-Zero built-in freezer...

Sub-Zero freezing food in the fresh-food compartment? Thermostat calibration, damper control, and temperature sensor diagnostics for built-in Sub-Zero models.

A Samsung washer that won't start is either a dead power chain or a machine waiting on the door lock. Sort which one you have, then work the ranked cause list.

A Samsung washer that won't spin is often spider-arm corrosion on WF front-loaders or a broken belt on WA top-loaders, plus a door lock that blocks spin. Know your drive system first.

Because a Speed Queen is overbuilt with metal where others use plastic, a drum that won't turn is almost always the drive belt. Spin it by hand and you'll know in seconds.

Most likely the freezer compressor is overheating and shutting down, usually from a failed condenser fan or dust-choked condenser coils. Sub-Zero's dual-compressor design lets the freezer quit while the fridge stays cold. After airflow, check the start relay, the compressor, and the control board. It is a food-safety situation, so do not wait.

A loud Sub-Zero compressor usually means bearing wear or hardened mounting grommets transferring vibration, sometimes a clicking start relay or dual-compressor resonance. Why these repairs are different, models BI-36U to PRO4850G, and when to leave it to a pro.

Speed Queen dryer running but cold? Diagnosis of heating element, gas igniter, and thermostat failures on Speed Queen DR/DC series commercial-grade...
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