Parts for CMT231S — Thermador Microwave

We found 46 parts confirmed to fit the Thermador Microwave CMT231S.

Compatibility table

Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.

Common failure areas on this model

The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.

Controls, timers and wiring

Symptom: A cycle that doesn't advance, an unresponsive display, or the unit not starting at all.

Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.

Parts in this group on CMT231S: 0220796113 (Home Electronics Capacitor), 1439864 (Thermador Timer Dial).

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Parts in this group on CMT231S: 02918498000 (Plt Brnr), 143487408 (Thermador Door Liner), 04980378 (Zgu375 Ns, L), 6102A1081 (Coleman Evcon Mount Pkg), 143705451 (Thermador Oven Door, Lower, Stainless Steel), 143705551 (Thermador Oven Door, Upper, Stainless Steel), 1439320 (Thermador Wheel), 1434877 (Thermador Plate), 2169142P (Fisher & Paykel Refrigerator Fan Blade), 1434938 (Thermador Insulation), 00414616 (Relay), 1439341 (Thermador Bushing), 1434958 (Thermador Conduit), 143459901 (Thermador Side), 1434814 (Thermador Channel), 1434807 (Thermador Plate), 1434795 (Thermador Retainer), 1301207 (Thermador Washer), 00219072 (Wall Oven Bake Element), 1434809 (Thermador Guard), 1439349 (Thermador Hub), 00484777 (Heater Element), 00367643 (Wall Oven Bake Element), W10541656 (Dryer Drum), 00486969 (Wall Oven Door Inner Glass).

Storage, trim and cosmetic hardware

Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.

Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.

Parts in this group on CMT231S: 143934001 (Thermador Bottom Trim), 143960601 (Thermador Control Knob (2)), 1050804031 (Freezer Shelf), 143488104 (Thermador Bracket), 143488201 (Thermador Air Shield), 1434813 (Thermador Shield), 00411348 (Spring), 1434831 (Thermador Bracket), 1434832 (Thermador Bracket), 1434884 (Thermador Cover), 1439299 (Thermador Panel Frame), 00367629 (Shelf), 143412501 (Thermador Cover), 1434812 (Thermador Shield), 1434887 (Thermador Cover), 75308685 (Line Trimmer Drive Shaft Housing, Upper), DA9712609B (Refrigerator Fresh Food Evaporator Cover and Fan Assembly), 00449757 (Wall Oven Broil Pan).

Door and drum seals

Symptom: A door or drum seal that has lost its grip, letting water or conditioned air escape past it.

Check: Inspect the seal for tears, flattening, or gaps, and check it against your model's part number before ordering.

Parts in this group on CMT231S: 00412883 (Gasket Seal).

Before you buy

Match CMT231S exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.

How to confirm this is your model

On most microwaves, the model and serial plate sits inside the door frame. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.

Neighbouring Thermador Microwave models

These model numbers sort next to this one in the catalog and are usually the same product family.

• CMT231WC — 17 parts
• MB245 — 42 parts
• MC15 — 15 parts
• MC17 — 28 parts
• MC19 — 29 parts
• CMT231EC — 57 parts
• CMT231E11 — 17 parts
• CMT231-01 — 49 parts
• CMT231 — 76 parts
• CMT227WC — 23 parts

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.