Miele Wall Oven Repair in Toronto — Oven not heating at all

• F21 and F22 are the two element codes that account for most Miele 'oven won't heat' calls, and the platform splits the diagnosis by heat path so the failure tells you which part: F21 flags the grill/broil element (an oven that bakes but won't broil), F22 flags the fan-forced ring element (an oven that browns but won't come up in convection). The upper/broil element is OEM 05813182 ('Heater element Oberhitze', listed on mieleusa.com and stocked through Reliable Parts, Sears PartsDirect and Part Advantage) and the 2500W fan-ring convection element is 2109812 / Miele 20.21693.000. Note one model/serial nuance on the broil element: 05813182 is the 208V Oberhitze variant and a separate 230-240V version exists under 5447904, so we confirm voltage by model/serial before ordering. Because each heat circuit is independent, we meter each element for continuity on its own before condemning anything - a single dead element reads open while the rest of the oven runs normally.
• F5 and F6 are the PT1000 temperature-sensor codes and are the reason a Miele oven bakes ice-cold, never closes the loop to setpoint, or faults out before it reaches temperature: F5 reads the PT1000 short-circuited, F6 reads it open. The correct probe is Miele PT1000 5730712, listed directly on mieleusa.com. As standard platinum-RTD reference physics, a healthy PT1000 reads about 1000 ohms at 0C and roughly 1097 ohms at room temperature on the IEC 60751 curve - that curve is the technician's bench reference, not a Miele-published connector spec, but an open (OL) reading or a value well off that curve still means the board is being fed bad temperature data and won't drive the elements, so we meter the probe at the connector before ordering the sensor.
• When the elements meter good on continuity and the PT1000 5730712 reads in range but the cavity still stays cold, F04 is the remaining suspect: it is the Miele electronic-control-board fault, and the element relay on that board is the technician-level failure point within it. The signature is an oven that lights, runs its fan and accepts settings but produces no heat in any mode. This is condemned last, strictly by elimination - a no-heat oven with healthy elements (05813182 / 2109812) and a healthy probe is exactly the case where the board's switching relay is the part that has failed.
• F23 is the not-heating code unique to the self-clean path: the pyrolytic cycle could not reach its target cleaning temperature (Miele runs pyrolysis at roughly 400C+) within the allotted time and quits early. Miele's own first remedy - documented on mieleusa.com and miele.co.uk - is to switch off, remove coarse soiling and re-run, because baked-on grease acts as a thermal blanket that starves the cavity of heat. A cavity that is already clean but still throws F23 shifts the diagnosis to a weak pyro element or a PT1000 (5730712) feeding low readings, in that order.
• A field condition that mimics a dead Miele element on these hardwired ovens is loss of one supply leg - commonly L2. The panel still lights and the fan still spins from L1, so the oven looks alive, but with only one 120V leg present the cavity physically cannot reach temperature and no F-code may even latch. We verify both legs at the terminal block and confirm a dedicated, fully-seated breaker before touching any Miele part, because a tripped or loose breaker leg has stranded more than one oven that was one phone call away from an unnecessary element order.
• F60 is a ventilation fault rather than an overtemp trip, but it belongs in a not-heating workup because it makes the oven derate or refuse to hold heat when the cooling fan is not spinning or the air duct is blocked or covered. Miele's published remedy is customer-actionable - clear the air duct, power-cycle (disconnect and reconnect mains), let it cool, and confirm the cooling fan turns when the oven heats - so we run that airflow check first, which keeps a nuisance ventilation fault from being misread as a dead element and an unnecessary 05813182 / 2109812 order.

Miele oven not heating at all in Toronto — the local specifics

• The recurring Toronto pattern on Miele not-heating is the split-mode complaint - 'it bakes fine but won't broil' or 'it won't come up in convection' - which points straight at one element (F21 grill / F22 fan-ring) rather than the control, and is the most common no-heat shape we see on H-series columns here. The genuine F04 control-board no-heat is rarer and only earns that call after the elements and PT1000 meter good.
• We carry the metering kit to these calls - a multimeter to read each element circuit and the PT1000 (5730712) against the IEC 60751 reference curve, plus a voltmeter for both supply legs at the terminal block - rather than carrying the high-value Miele parts speculatively, since 05813182, 2109812 and the control board are model/serial-confirmed and factory-ordered after diagnosis.

For the full Miele wall oven module — every fault, part number and code — see Miele wall oven repair in Toronto, and for the same fault across all brands the wall oven oven not heating at all guide.