T36IB900SP

What we most often repair on units like this

1. Frost in the freezer drawer because the seal sits crooked
2. Ice production halted by an ice bin that is not pushed in all the way
3. Refrigerator side warming while the freezer remains cold
4. Temperature alarm showing on the display following a power cut

Thermador slotted the T36IB900SP into the line of 36-inch bottom freezers for custom panels, after the T36IB800SP and before the T36IB905SP, and it now lists the model as discontinued while keeping a service page online. One fresh-food door sits over a pull-out freezer drawer, and both wear panels that match the cabinets.

The drawer draws most of our attention on this layout. When it does not close square, humid air gets in, frost builds on the walls, and the ice maker slows or stops. Thermador’s troubleshooting also lists an ice bin that is not seated properly as a reason for no ice, so that is a quick first test. After the drawer, we compare the two sections: warm food with a cold freezer sends us toward airflow rather than the sealed system.

Key features

• Built-in 36-inch bottom-freezer refrigerator for custom panels
• A single fresh-food door above a freezer that pulls out as a drawer
• Freedom hinge for a flush fit in the cabinetry
• Follows the T36IB800SP and precedes the T36IB905SP