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MU30WSU

Thermador MU30WSU

What we most often repair on units like this

  1. A worn exhaust fan or blower, or a grease filter that is clogged, weakens the venting
  2. Wear in the side-swing hinge or latch can keep the interlock switch from being satisfied
  3. Keypad problems after condensation, and turntable or motor wear that heats unevenly

Mounted above the range, the MU30WSU does two jobs: it cooks, and it pulls cooking air away from the cooktop below. According to Thermador’s product page, the door opens to the left, the interior is 2.1 cu. ft., the draw is 1550 watts at 120V/15A, and the built-in ventilation takes the place of a range hood.

That second job gives it a problem built-in and drawer microwaves lack. Grease collects in the filter, and the blower motor wears from years of moving it, so a kitchen that stays smoky or steamy may need airflow attention rather than anything on the cooking side.

For the microwave itself, the same list applies: a side-swing door that no longer satisfies the interlock, a keypad hurt by condensation, and a turntable that wears. Any numeric error code should be noted down and mentioned when you request service.

Key features

  • Microwave mounted above the range, 30 inches wide, with the door opening toward the left and ventilation built in
  • Interior of 2.1 cu. ft. drawing 1550 watts from a 120V/15A circuit
  • Home Connect gives Wi-Fi operation, with CookSmart auto-programs and ten microwave-only programs
→Codes

Codes this model may display

MU30WSUMU30WSU questions
The vent barely pulls smoke away. Is the microwave dying?

Often not. A grease filter clogged with buildup or a worn blower motor reduces airflow, while the microwave itself still works. We check the filter first, then the blower.

Why does an over-the-range microwave get more wear?

It lives above the range, so it handles heat, steam and grease all day, and its fan runs whenever you cook. That combination wears filters, blower motors and keypads faster.

How often should the grease filter be cleaned?

A habit of washing it regularly keeps airflow strong and eases the load on the blower. If the filter is damaged or the fan stays weak after cleaning, the blower needs inspection.

Request service

Schedule service for your MU30WSU

Request a visit online in about a minute or phone our coordinators. Close-in neighborhoods often see a same-day slot; the outer counties usually get the next day across Houston.