Bosch sits at the practical end of the premium kitchen: quiet dishwashers, precise induction, and clean-lined wall ovens that a lot of Greenfield Hill homes chose over flashier badges. It is also the platform underneath Thermador and Gaggenau, so the diagnostics carry across BSH lines and the parts supply is deep. The upside for owners is that most Bosch faults resolve to one well-supported component. The catch is that Bosch leans hard on sensors and safety interlocks, so a small leak or a tired pump will halt the whole machine with a coded stop rather than limp along. We read those codes, confirm them against the actual condition of the appliance, and fix the cause.
Models We Service
- Dishwashers: 100, 300, 500, 800, and Benchmark series, including the flexible third-rack and CrystalDry models.
- Wall ovens & speed ovens: Benchmark and 800-series single, double, and combination steam and convection ovens.
- Cooktops: Bosch induction, electric, and sealed-burner gas cooktops.
- Refrigeration: Bosch counter-depth French-door and Benchmark built-in refrigeration.
- Ranges: Bosch 800-series and Benchmark slide-in gas, electric, and induction ranges.
Error and Fault Codes
Bosch and the wider BSH family use the E-code system on dishwashers, and it is one of the clearer diagnostic schemes in the premium market. The codes below are the ones our techs see most in Lower Fairfield County and Lower Fairfield County communities kitchens. A code tells you where the machine stopped, not always why, so we always verify before ordering a part.
| Code | Meaning | Typical Fix |
|---|---|---|
| E15 | Water in the base tray, anti-flood float tripped | Find and repair the leak source, dry the sensor |
| E24 | Drainage blocked or slow | Clear the filter, hose, and drain pump impeller |
| E22 | Filter or circulation fault | Clean the filter, check the circulation pump |
| E09 | Flow-through heating element fault | Test and replace the heating element or heat pump |
| E01 / E02 | Control or heating relay fault | Diagnose the control board and wiring |
Common Problems We Fix
On the cleaning side, the recurring calls are an E15 base-tray leak (usually a spray-arm seal, sump gasket, or a loose hose clamp), an E24 that will not drain because the pump has swallowed a shard of glass, and weak drying from low rinse aid or a failed heating element. On cooktops, an induction zone that will not recognize a pan points to the coil or power board. Wall ovens most often need a temperature sensor or a bake element, and the refrigeration units share the fan, defrost, and inlet-valve faults common to all built-ins. Whatever the badge on the front, we run the same disciplined diagnosis.
Maintenance and Guides
See our Bosch dishwasher guide, our walkthrough on the Bosch dishwasher E15 leak code, and our explainer on Bosch E24 and E22 drainage faults.
Bosch Throwing a Code?
Book a brand-focused technician. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.