The PRL304EG is an older 30-inch range from Thermador’s Pro Grand series, built specifically for LP (propane) gas rather than natural gas – Thermador’s own service manual for this model cross-references a wider family of LP-configured siblings across 30, 36, and 48-inch sizes. Because it’s LP-specific rather than convertible, any burner or ignition problem should be checked with LP-gas troubleshooting in mind rather than assuming a natural-gas problem pattern.
At 118 pages, Thermador’s own service manual for this range is substantial, suggesting it was documented for real field servicing rather than as a basic owner’s guide – a good sign that individual parts (igniters, valves, thermostats) were designed to be repaired rather than requiring whole-unit replacement. If a burner won’t light and there’s any smell of gas – propane included – shutting off the gas supply to the range comes first, before any other troubleshooting step, and LP systems warrant the same shutoff priority as natural gas.
Key Features
- 30'' range from an older Thermador Pro Grand series built for LP (propane) gas
- Part of a documented family spanning 30/36/48'' sizes and multiple LP configurations (per Thermador's own service manual cross-references, including PRL364EDG, PRL486EDG, and related models)
- Documented in a dedicated 118-page service manual, indicating substantial service detail exists for this model
- Predates current dual-fuel model naming and Home Connect WiFi
Most Common Issues on This Model
Burner not igniting or holding flame on LP gas supply
Oven igniter not lighting the main burner
LP regulator or supply-line issues affecting overall flame quality
Oven temperature drifting from the dial setting
Aging control parts (knobs, clock, indicator lights)

