Bosch Dishwasher Repair in Toronto — Error code flashing

• Bosch's E-code vocabulary is the diagnosis, not the fault. A displayed E-code is the control reporting which SENSOR tripped, never which part failed: E15 means water reached the base/float circuit and the anti-flood float (00165256) parked the machine, E22 means the control found residual water under the filter cylinder (micro filter 00645038), E25 means the drain pump (00642239) was commanded but the impeller didn't move flow, and E09 means the heating circuit (heat-pump assembly 00755078 / 12008381 — VIN-match off the data plate) read open. The single biggest error-code mistake is treating the code as the repair order. We read the code to know which subsystem to interrogate, then trace to the actual failed component before quoting a part. (bosch-home.com error-code pages; AppliancePartsPros.)
• On display-less 100/300-series builds (Ascenta, SHE3AR / SHX builds without a numeric readout), the same E-codes are blinked out on the cycle-indicator LEDs (Clean / Sanitized / Rinse-Aid) rather than shown as 'E15' — you count the blinks between pauses to read the number, and stored faults are pulled by entering Bosch's service test (hold the program button while powering on, then step through with the program/cycle pad on most builds). We decode the blink pattern on these models rather than guess from symptoms, because a misread blink count sends the whole diagnosis the wrong way. (RepairClinic and AppliancePartsPros flashing-light guides.)
• E24 and E25 are siblings that read identically as 'won't drain' but point at opposite ends of the drain path, and confusing them is the classic Bosch error-code misdiagnosis. E24 is a restricted drain PATH — a grease-loaded micro filter (00645038), a clogged sump, or a kinked/blocked drain hose — while E25 is the drain PUMP itself: a jammed impeller (seed, glass shard, detached label) or a pump cover not clicked fully down, and only a truly seized or open motor warrants the drain pump 00642239 (AP3996662 / PS8729769). We clear and test the path for E24 and pop the cover and free the impeller for E25 BEFORE condemning the pump, because the pump-cover-not-seated version of E25 is a no-part fix. (bosch-home.com E24/E25 pages; AppliancePartsPros AP3996662.)
• E15 is an alarm, never a part number — and the worst error-code habit on Bosch is clearing it blind. E15 only tells you water reached the float/anti-flood circuit and the float switch (00165256, AP2802373; replaces 935359 / PS8697040) parked the machine with the drain pump running continuously; the actual leak is still upstream (inlet valve 00628334, AquaStop hose 00674387, sump/pump gaskets 00263102 / 00171598, or door seal 00432490). A tip-and-dry plus power-cycle silences the code for one load and the customer calls back. We dry the base, confirm the float drops and resets freely, find and fix the real leak, THEN clear E15. We also rule out the inverse — a debris-stuck float throwing a FALSE E15 on a dry pan, where the fix is freeing the float, not chasing a leak. (bosch-home.com E15 page.)
• E18 is a low-water-level / fill-flow code that owners and even some techs misread as a broken inlet valve — but Bosch's own troubleshooting puts three zero-part supply checks first: a tap that isn't fully open, a kinked or scaled inlet/AquaStop screen, and low household flow. Bosch specifies roughly 10 L/min from a fully open tap; we time a 10-litre fill at the faucet before touching a valve. Only when the screen is clean, the hose is clear, and the tap delivers full flow does the fault move to the water inlet valve (00628334, supersedes 9000655808 / 3278459) on non-AquaStop builds or the sealed AquaStop hose/valve assembly (00674387, AP4434735) on AquaStop models — and a tripped AquaStop (red flag visible in the hose-connector window) is replaced as a sealed unit, never reset blind. (bosch-home.com E18 page; AppliancePartsPros E18 guide.)
• E06 is a door-lock / latch-switch code, not a control-board fault: the control isn't receiving the closed-and-latched signal from the door switch. The usual cure is the genuine 00654621 door latch and switch assembly (AP5326416 / PS8731526; fits Bosch/Thermador/Gaggenau) — a model-coded, non-repairable swap — but E06 also throws on a misaligned latch, a worn strike plate, or sagging hinges that stop the catch fully engaging. We re-seat the door square and check strike wear first (an E06 that clears on alignment is a no-part fix) and only replace the latch when the door closes solidly but the code persists. (AppliancePartsPros E06 guide; Reliable Parts 00654621.)
• E26 (diverter-motor fault) and E07 (zeolite/CrystalDry fan defective) are the two drying-and-distribution codes Bosch owners least expect, and each has one real part. E26 is the water-distribution diverter — when the diverter motor stalls or the valve sticks on scale, water only reaches one rack tier; genuine part is the diverter assembly 00751950 (AP5691407 / PS8737182), shared with Thermador/Gaggenau, and we bench-confirm it steps through its positions before condemning it since a scaled-but-healthy valve can free with a descale. E07 is specific to 800-series / Benchmark CrystalDry units: the sealed zeolite chamber is life-of-machine (NOT refillable), but its dedicated fan-motor (12009748, AP6330888) drives the drying airflow, and a seized fan or a film sucked into the rear intake throws E07. We clear the intake first, then replace 12009748 only when the motor is open or jammed. (PartSelect PS8737182; AppliancePartsPros 12009748 / AP6330888.)

Bosch error code flashing in Toronto — the local specifics

• The recurring Toronto pattern on Bosch error-code calls is the owner reading the code as the repair order — booking 'I need a drain pump, it shows E25' or 'the heater's gone, it's on E09' — when the code only names the subsystem. The hard-water-driven trio (E22 filter-blocked, E24 drain-path, E25 pump) lands constantly and most often resolves on a sump clean-out, a freed pump impeller, or a re-seated pump cover rather than the pump itself; E15 calls recur as blind-reset callbacks where a real upstream leak was never found; and E18 recurs as a 'broken valve' that's actually a scaled AquaStop screen or a part-open tap. We diagnose to the failed component behind the code, not the code.
• We roll to GTA Bosch error-code calls with the high-frequency stock on the van — drain pump 00642239, micro pump filter 00645038, inline check valve 00165262, base float switch 00165256, and the 00654621 door latch — plus a descale kit and flow meter for the E18/E22/E24 supply-and-filter checks. The model/serial-coded parts (heat-pump 00755078 / 12008381 for E09, diverter 00751950 for E26, CrystalDry fan 12009748 for E07, and the programmed power module) we VIN-match off the data plate and order to the job rather than carry blind.

For the full Bosch dishwasher module — every fault, part number and code — see Bosch dishwasher repair in Toronto, and for the same fault across all brands the dishwasher error code flashing guide.