Avanti Microwave Repair in Silver Spring, MD

Avanti microwaves are countertop and compact units sized for office kitchens, dorm rooms and small apartments. When one lights up and turns the plate but leaves food cold, the trouble is in the high-voltage section: magnetron, diode, capacitor or transformer. When one is completely dark, the internal fuse has often blown, and a door interlock switch that stopped working properly is frequently what took it out. Sparking in the cavity usually comes from a scorched waveguide cover or chipped interior paint. The high-voltage capacitor can stay charged after unplugging, so this is not a do-it-yourself job. On an inexpensive countertop model, a magnetron replacement is often not worth doing, and we will say so.

Where we start on this pairing: Magnetron failed, food stays cold; Door interlock switch failed; Internal fuse blown, no display; Waveguide cover scorched and arcing; Turntable motor stopped.

Treat that list as leads rather than conclusions. Identical symptoms can hide a minor fault or a major one, and the only way to know which is to test the appliance where it's installed, which comes before any quote.

Over-the-range microwaves are the rule in Silver Spring's updated kitchens, from townhouses in Fairland to renovated ramblers in Wheaton, and they double as the only range hood. Grease and steam from the burners below wear out the fan, the light and the keypad along with the heating side. In a rented apartment the unit normally belongs to the owner, and a basic countertop microwave may not be worth a repair at all.

Gas ranges on Washington Gas are typical in the older houses of Woodside Park, Forest Glen and Four Corners, while the downtown towers mostly cook on electric and townhouses are a mix.

Whatever the brand, the microwave symptom that misleads people most is a microwave with a working light, fan and turntable but no heat, which usually means a magnetron, diode or capacitor rather than the control board.

Locally, what we watch for most on a microwave is over-the-range units that double as the only kitchen hood, and drawer models built into islands.

Clothes that come out warm and damp almost always mean the dryer can't get its air out. Around Silver Spring, the choke point may be a long duct from an upstairs laundry room, a hood at ground level on a postwar house, a foil hose crushed behind the machine, or a building exhaust shared by a whole stack of units.

Airflow is measured before the element or thermal fuse is touched, because a heating part fitted to a dryer that can't exhaust simply burns out again.