Wolf built the R604GF as a 60-inch range with four open burners alongside an infrared griddle and a French top, and unlike the Dual Fuel line it keeps gas on both sides of the appliance — the oven cavity is heated by a gas burner and regulated by an oven thermostat rather than by an electric element and a solid-state sensor.
The R604GF’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 infrared griddle is a separate heated surface with its own burner and control, and a cold spot on it is a griddle-side diagnosis rather than a cooktop one. The French top is a solid heated plate with a hot centre and a cooler perimeter by design — a gradient that is intentional, not a fault, though a top that never gets hot in the middle is.
For anyone matching parts or a replacement, the number reads as R for the original professional gas range line, 60 for the cabinet width in inches, 4 for the four open burners, G for the infrared griddle and F for the French top. 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
- 60-inch all-gas range: four open burners alongside an infrared griddle and a French top, 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
- Separate griddle assembly with its own burner and control
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
Griddle will not heat, or heats unevenly across its surface