Bosch Dryer Repair in Toronto — Shuts off mid-cycle

• Platform first - a Bosch "shuts off mid-cycle" call splits by machine and the cure does not cross over. On the 24" condensation/heat-pump units (WTG86 / WTW87 / WQB245) the most common true mid-cycle halt is the condensate-drainage chain: when the collected water can't be pumped out, the control parks the program and posts E:03. Bosch's own E:03 page documents this as a blocked/kinked condensation drain hose or full condensate tank stopping the cycle. The part at the end of that chain is the condensate/drain pump 00145623 (AP5804736 / PS8770262; supersedes 3278111; genuine OEM on bosch-home.com, shared with Thermador/Gaggenau). We clear the hose, sump and tank route FIRST - an E:03 that clears on a flushed hose is a no-part fix - and only condemn the 00145623 pump when the impeller is seized or lint-sludged solid.
• The classic FALSE mid-cycle stop on the condensation/heat-pump platform is a STUCK FLOAT, not a dead pump. The water-level float has two metal sensing strips that gunk up with lint sludge; once bridged, the control reads 'tank full' and halts the cycle on a genuinely empty container (owners report a full-tank/'empty container' alarm with the tank dry - it can surface under more than one Bosch code depending on generation). The fix is freeing and cleaning the float, NOT ordering the 00145623 pump - so we inspect and free the float that should drop and reset cleanly BEFORE quoting any drain part. This is the single most mis-ordered Bosch mid-cycle fault.
• On the older VENTED Axxis machines (WTV76100US / WTA-series) a cycle that runs warm then SHUTS OFF partway is the manual-reset HIGH-LIMIT THERMOSTAT 00422272 tripping - a 175F limiter with a red reset button (RepairClinic/PartSelect PS8713233; genuine Bosch). It is a safety, so a trip means a RESTRICTED EXHAUST RUN (lint-packed vent/duct), not a bad part. We clear the duct and reset; a thermostat that re-trips means the airflow path is still blocked, so swapping the 00422272 without clearing the vent just cooks a second one.
• An early cut-out or repeating SHORT cycle - dryer stops well before the load is dry - is usually NTC temperature-sensor drift, not a heater or pump. When the control reads air temperature wrong it cuts the cycle early; on the condensation platform Bosch flags the front sensor as E:05 (NTC open/shorted - control gets no signal). The 10k-ohm-at-25C NTC thermistor is 00613753 (genuine bosch-home.com; Reliable Parts; shared Thermador/Gaggenau). We ohm the NTC across a temperature swing - resistance must climb as it cools - before condemning it, because a harness/connector fault throws the same E:05 and is a no-part repair.
• Heat-pump WTW87 (WTW87NH1UC) / WQB245 (WQB245AXUC) mid-cycle shutdowns are the specialist case. On these sealed 24" machines F:06 is a heating-circuit / compressor over-temperature fault (Bosch's own code, 'fault in heating circuit / over-temperature detection of compressor activated'; corroborated on iFixit's WTW87565AU F:06 thread) - there is no resistance element, so the over-temp probe sits on the compressor/refrigerant loop and the control trips the cycle to protect it. Often the upstream trigger is a lint-loaded evaporator/condenser choking airflow rather than a failed compressor, so we clean and verify airflow first; a true sealed-system F:06 is EPA-608 work, and we say so up front rather than chase a heater that doesn't exist.
• On the condensation WTG86 (badged 800 Series, WTG86400UC / WTG86402UC) a cycle that quits early with E:01 or E:02 is the fluff/lint filter and condenser air path overheating the loop, NOT a control board. Bosch documents E:01/E:02 as owner-clearable filter/heat-exchanger maintenance codes; a clogged manual heat-exchanger lets temperature climb until the machine self-protects and stops. We rinse the heat-exchanger and clean the filter-sensor area rather than condemn a board - a mid-cycle stop that clears on a cleaned condenser path is a no-part fix.

Bosch shuts off mid-cycle in Toronto — the local specifics

• The recurring Toronto pattern on Bosch 'shuts off mid-cycle' is overwhelmingly drainage on the ventless condo machines: the cycle halts on E:03 because a kinked/blocked condensation hose or a lint-sludged float stopped the water leaving the machine - and very often the float is stuck on a dry tank, a no-part clean rather than the 00145623 pump owners assume. On the older vented Axxis stock the recurring version is the 00422272 high-limit tripping on a lint-choked exhaust run. Different platforms, same complaint - which is why we serial-confirm before quoting.
• We bring the parts these calls actually need: the 00145623 condensate/drain pump, the 00422272 175F high-limit thermostat, and the 00613753 NTC thermistor, plus float-cleaning and hose-clearing kit so the common no-part fixes (freed float, flushed drain hose, cleared vent) get solved on the first visit without selling a part the fault didn't need.

For the full Bosch dryer module — every fault, part number and code — see Bosch dryer repair in Toronto, and for the same fault across all brands the dryer shuts off mid-cycle guide.