Two ways in, and no third

The visit and the full diagnosis — readings taken, fault identified, price quoted. Approve the repair and the $95 comes off the bill in full. Decline it and that is all you have paid.

That is the classic aged igniter. It still glows, but it no longer draws enough current to open the safety valve, so the oven never heats. The glow is misleading — the test is current draw in amps, and it takes a couple of minutes to measure.

Almost always. The parts that fail on these are igniters, spark modules, valves, thermostats, control boards, hinges and seals, and all of them are contained repairs against the cost of the appliance. What ends a repair is a cracked casting or fire damage, not age.

Nine times in ten the blower is fine and the airflow is being lost somewhere else: saturated baffles, a damper flap gummed shut, a crushed section of flexible duct, or a roof cap that has not opened properly in years. Wash the baffles first — it is free and it is occasionally the whole answer.

Yes. Induction cooktops fail differently — inverter boards, cooling fans and coil sensing rather than valves and orifices — and the cabinet ventilation underneath is usually implicated. It is the same trade, with a multimeter in place of a manometer.

The whole town is one round, and the streets that spill over the Arlington, Medford and Woburn lines are normally straightforward too. If you are unsure, call and ask rather than guessing from a list.