The PRG486GDH is an older 48-inch all-gas Thermador range, documented in its own installation manual, and it’s the direct predecessor to the current PRG486WDG. Thermador’s documentation cross-references a closely related PRL486GDH sibling and ties it into the same PRG304GH family lineage as the 36” PRG364GDH, indicating this was part of a coordinated multi-size professional gas range generation rather than a standalone unit.
Given that today’s equivalent 48” all-gas range (the PRG486WDG) uses two separate gas ovens, this older generation likely shares that dual-cavity concept, which means isolating which oven cavity is actually affected is an important first step before further diagnosis – the same principle that applies to the current model, just without Home Connect to help narrow it down. If a burner or either oven won’t reliably light and there’s any smell of gas, shutting off the gas supply to the range comes first, before any other troubleshooting step.
Key Features
- Older 48'' all-gas Pro range, documented in a dedicated installation manual published by Thermador
- Cross-referenced with a closely related PRL486GDH sibling and the same PRG304GH family as the 36'' PRG364GDH
- Predecessor generation to today's current PRG486WDG dual-oven all-gas range
- Predates Home Connect WiFi
Most Common Issues on This Model
Burner not igniting on the cooktop
One of the (likely dual) oven cavities not igniting or not heating
Bake or broil temperature drifting with age
Door gasket wear reducing oven heat retention
Aging control parts (knobs, indicator lights, clock)