Thermador Refrigerator Repair in Toronto — Not cooling

• Stalled evaporator fan is the #1 not-cooling cause on Thermador Freedom columns and built-in bottom-freezers: the fresh-food side drifts warm while the freezer stays cold because the single evaporator's fan (00672636) has seized — spin the blade by hand behind the rear freezer panel; if it won't turn freely or only hums, replace the fan motor rather than touching the sealed system.
• Defrost-circuit icing slowly chokes off cooling: when the defrost heater (12023292) or the evaporator NTC thermistor (11030589) fails, frost packs the evaporator coil until airflow is blocked and the cabinet warms even though the compressor runs. Pull the rear panel — a visibly iced coil confirms it; meter the heater for continuity (an open heater won't pass current) and check the thermistor against its model spec before condemning the board.
• A blocked defrost drain mimics a defrost-component failure: melt-water re-freezes at the drain, ice rebuilds on the coil, and the unit cools then quietly loses airflow. On French-door/bottom-freezer T36-class units this is common and is a drain clear-out, not a parts swap — verify the drain path before quoting a heater or thermistor.
• Temperature-sensor (NTC) faults throw E01 (fresh-food sensor) or E02 (freezer sensor) and make the board mis-regulate cooling — the compressor under- or over-runs and temps drift. Harness/connector corrosion at the sensor in the upper compartment is common; reseat and check continuity before replacing the NTC family part (11030589).
• Control-side codes E10 (main control board) and E15 (ambient sensor inside the display/control module) can leave the unit failing to call for cooling. Power down 3-5 minutes to reset; if the code returns, the module is model-coded and dealer-ordered — never parts-cannon the board on an $8k+ built-in before reseating harnesses and ruling out a sensor.
• Condenser-side over-run shutdown reads as intermittent not-cooling: a clogged lower-grille condenser plus a failing condenser fan (00795952) makes the unit cool, then run hot/loud at the grille and quietly stop on a thermal cutout. Clean the coil and confirm the fan's role by full model/serial — on some BSH builds 00795952 is cross-listed as an evaporator fan, so verify before ordering.
• Separate a stuck air damper or stalled evaporator fan from a true refrigerant fault before condemning the compressor: a sealed-system leak is EPA 608 / TSSA-scope, but the far more common Thermador not-cooling call is an airflow problem (fan 00672636, defrost 12023292/11030589) that needs no gas work at all.

Thermador not cooling in Toronto — the local specifics

• The recurring Toronto pattern on Thermador not-cooling is the fresh-food-warm / freezer-still-cold split on Freedom columns and built-in bottom-freezers — almost always a stalled evaporator fan (00672636) or defrost-circuit icing (12023292 / 11030589 / a frozen defrost drain) choking airflow, not a dead compressor. We routinely pull the rear panel to find an iced evaporator before anyone discusses the sealed system.
• We carry the airflow kit to these calls: evaporator fan motor 00672636, defrost heater 12023292, evaporator NTC thermistor 11030589, and the condenser fan 00795952 — plus a REPLFLTR55 filter — so an airflow-driven not-cooling fault is fixed on the parts trip. Model-coded E10 boards and E15 display modules are confirmed by serial and ordered, never carried blind.

For the full Thermador refrigerator module — every fault, part number and code — see Thermador refrigerator repair in Toronto, and for the same fault across all brands the refrigerator not cooling guide.