The MAS304DFMXE is the four-burner predecessor to today’s five-burner MAS305DFMXV, from a Master Series generation before Bertazzoni widened the burner spread on its 30-inch dual-fuel range. The gas cooktop and electric convection oven are diagnosed the same way as the current model — igniters and ports on one side, sensor and elements on the other — but replacement burner caps and grates should be checked against this specific four-burner layout rather than assumed interchangeable with the newer five-burner maintop.
Key Features
- 30" freestanding dual-fuel range, 4 burners, older Master Series naming
- Electric convection oven beneath a gas cooktop
- Continuous cast-iron grates
- Analogue or early-digital temperature gauge depending on production year
- Telescopic rack glides on select shelf levels
Most Common Issues on This Model
01
Igniter clicking without lighting a burner after years of service
02
Oven temperature sensor drift affecting bake accuracy
03
Convection fan motor noise or failure
04
Door hinge and gasket wear reducing heat retention