Thermador Wall Oven Repair in Toronto — Self-clean won't start, or door locked after self-clean

• The genuine self-clean door-lock fault codes on Thermador (BSH) wall ovens are the latch codes, not E305. On Thermador-badged controls the signature code is E13 (latch motor / control-board fault: the door-lock motor fails to drive the latch, so self-clean won't start or the door won't release). On Bosch-platform BSH controls the same family shows as F41 (latch failed to LOCK at the start of self-clean), F43 (latch will NOT unlock after the cycle), and F51 (latch stuck unlocked). To the customer all of these look like 'I ran self-clean and the oven is frozen with the door sealed.' On the self-cleaning Masterpiece/Professional cavities the cause is usually the door-latch motor-and-switch assembly itself, the latch microswitch reads 'door still locked' even after the cycle, often because the switch is stuck down or the latch hook is fouled with grease. We meter the latch motor and switch for continuity and inspect the hook before condemning anything.
• E305 is NOT a door-lock code, despite SEO pages that say so: on Bosch/Thermador (BSH) controls E305 is a board-COMMUNICATION fault, a loss of communication between the touch-control module (TCM) and the main control/relay module or user interface ('no connection between baseplates'). It typically presents as a dead or unresponsive display with no heat, which can coincide with a door that happens to be latched, but the latch motor itself may be fine. We call it out separately so a genuine comms/board fault isn't mis-repaired as a latch, and a real stuck latch (E13 / F41 / F43 / F51) isn't blamed on the boards. We confirm the failure mode against the model tag before ordering anything.
• Error E115 is the overtemp tail of a self-clean call that ends 'stuck locked': self-clean drives the cavity to roughly 800-900F, and if the control reads cavity temperature past its safe ceiling it cuts the elements AND holds the door locked until the cavity proves cool. To the customer that looks like an oven that ran self-clean and then froze with the door sealed shut. Root cause is either a false-high NTC reading (probe 00414152 off-curve, a healthy Bosch NTC reads roughly 1000-1100 ohms at room temperature) or a welded/stuck-closed element relay on relay control board 00492069, so we prove sensor resistance versus a stuck relay before ever clearing it, this is a fire-risk code, never reset-and-return. Note that BSH displays may show the same fault with an E or F prefix depending on the panel.
• The door latch service kit 00751505 is the part this symptom most often needs: Thermador's current OEM latch (an HTI-design assembly with a new bottom mounting plate) supersedes the older 644216 'Meteor' latch and also crosses to 00644216, 00663804, 2694840 and PS8737154. On 27in and 30in built-in wall ovens the original latch plastic and its return mechanism fatigue from repeated self-clean heat soak, so the latch sticks in the locked position or won't drive home, throwing E13 (or F41/F43/F51 on Bosch-platform controls). Because the supplier-change kit mounts slightly differently, we fit it to the new bottom plate with the two original screws and re-land the harness exactly per the 751505 service-kit instructions rather than reusing the old plate.
• A self-clean-stuck call that is really the control electronics: the latch is commanded by the oven's control, so a relay/board fault can leave the door locked with no mechanical latch failure. On these BSH columns relay control board 00492069 is diagnosed as a pair with display/control board 00702450 (which crosses to 486792 / 00486792 / 492067 and is discontinued, rebuild-only). This is also where a true E305 communication fault lives, comms between the TCM and the main module, not the latch motor. We confirm the latch motor and switch are healthy on the meter before sending a board out, so an honest latch swap isn't mistaken for an expensive board, and a genuine board fault isn't masked by a new latch.
• Grease-fouled latch and lock-switch is the cheap save we rule in first: on heavily-used Thermador ovens the lock hook, the latch slide and the microswitch next to the hook foul with baked grease, so the latch binds and the switch never reports 'unlocked.' The honest first step is to kill power at the breaker for several minutes to reset the latch, clean the hook and switch, and re-meter the switch for continuity before ordering latch kit 00751505, a cleaned, freed latch sometimes recovers and saves the part.
• Premature/false 'door locked' lockout without a completed self-clean: if the latch microswitch on the lock assembly is intermittent, the control can believe the door is locked and refuse normal bake, or refuse to release after a normal cycle. This is the same lock circuit as the self-clean path, the genuine latch codes E13 (Thermador) and F41/F43/F51 (Bosch), not a control-panel-button code like E011 (which means a stuck/shorted touch key, a different fault entirely). We verify the switch state and harness continuity on the meter and replace the latch assembly (00751505) when the switch won't reliably report the unlocked position.

Thermador self-clean won't start, or door locked after self-clean in Toronto — the local specifics

• The recurring Thermador-in-Toronto pattern for self-clean-stuck is a holiday-season spike: customers run self-clean before hosting, the older Meteor-style latch fatigues from the 800-900F heat soak and sticks locked, throwing E13 (or F41/F43/F51 on Bosch-platform controls) with the door sealed, or the cycle overtemps to E115 and holds the lock until the cavity cools. Most of these resolve at the latch (clean-and-free, or the 00751505 kit), with a smaller share tracing back to a false-high NTC, a stuck relay on board 00492069, or a genuine E305 board-communication fault rather than the latch itself.
• We carry the shared BSH door-latch service kit 00751505 (with its new bottom mounting plate and the 00644216 / 00663804 cross-references), source the NTC oven sensor 00414152 to rule a false-high temperature read in/out on E115, and our meters to test the latch motor-and-switch continuity and the element relay on board 00492069 before condemning any electronics, so a stuck door is closed on the right part (latch vs. sensor vs. board) instead of a parts-cannon.

For the full Thermador wall oven module — every fault, part number and code — see Thermador wall oven repair in Toronto, and for the same fault across all brands the wall oven self-clean won't start, or door locked after self-clean guide.