The R304 gives you four open burners in a 30-inch cabinet opening. It is a gas-on-gas range, so an oven that will not come up to temperature sends a technician to the oven burner, the safety valve and the thermostat rather than to a bake element.
The R304’s most common call is a surface burner that sparks constantly even after lighting. On this platform that is almost always the micro-switch at the valve or a chafed electrode wire shorting to the chassis, not the burner head.
The suffix carries more information than people expect: R for the original professional gas range line, 30 for the cabinet width in inches and 4 for the four open burners. That convention has barely changed since: Wolf still spells the same charbroiler, griddle and French top options the same way on its current ranges and rangetops.
Key Features
- 30-inch all-gas range: four open burners, with a gas oven below
- Spark module and per-burner electrodes for surface ignition
- Gas oven burner regulated by an oven thermostat rather than an electronic sensor
Most Common Issues on This Model
Surface burner will not light, or keeps sparking after it has lit
Gas oven bakes consistently above or below the set temperature
Oven burner will not ignite at all
Persistent gas smell near the range — a safety call, not a routine repair