Bertazzoni MAS304DFMXE Dual-Fuel Range Repair
The MAS304DFMXE is an older four-burner dual-fuel Master Series range, found in kitchens with both a gas line and a 240-volt outlet. Many of these have been cooking for years, so the repairs we see are about age rather than defects: parts that have simply done a lot of heating cycles.
We start on the gas side by lighting each burner and watching the spark, since a clicking igniter with no flame points to a dirty port, a worn spark electrode or a weak module. In the electric oven we test bake accuracy against a separate thermometer and listen to the convection fan.
Door hinges and gaskets on a range this age often let heat escape, which makes the oven run long and the sensor look wrong. If you ever smell gas, leave the house and call the gas utility from outside, then phone us afterward.
The spark is firing, but the flame needs a clean port, a good electrode gap and gas flow. Spilled food often blocks the port. We clean it and test the electrode and spark module, replacing only what fails.
The sensor is the most common reason on older ovens, but a worn door gasket can cause the same result. We check the sensor resistance and compare the cavity temperature with a thermometer before deciding.
A noisy convection fan usually has a worn bearing or a bent blade. We remove the fan cover, check the blade and motor, and replace the motor if it is rough, so the oven does not lose its even-baking ability.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.
