The short version: most Bosch service calls are dishwasher water faults shown as E-codes, plus oven and refrigeration sensor issues. Read the code, confirm the cause, and the repair is usually a defined a part selected for the approved scope.
Bosch dishwashers are among the most common high-end machines in Longmont kitchens, and they are well engineered for diagnosis. The E15, E24 and E22 codes cover the majority of what we see, and each points to a specific water-handling component that is straightforward to service.
Model Lines We Service
- Dishwashers: Benchmark, 800 and 500 series built-in and fully integrated machines.
- Wall ovens: Benchmark and 800 series single and double convection ovens.
- Refrigeration: 800 series counter-depth and built-in refrigerators.
- Cooktops: induction, gas and electric cooktops.
Common Fault Codes
| Code | Meaning | Our Fix |
|---|---|---|
| E15 | Water in the base pan, leak protection tripped | Find and stop the leak, dry the base, reset |
| E24 | Drainage fault, blocked filter or hose | Clear the drain path, test the drain pump |
| E22 | Filter or drainage blockage | Clean the filter and check valve, clear the path |
| E09 | Flow heater fault | Test the heater circuit, replace the heater |
| E17 / E18 | Water-inlet or fill fault | Check inlet valve and supply pressure |
Care That Keeps It Quiet
Clean the dishwasher filter monthly, run a cleaning cycle to keep the sump and spray arms clear, and check that the drain hose has a proper high loop. On ovens and refrigeration, wipe spills promptly and vacuum the condenser so the compressor is not overworked.
When to Call Us
An E-code that returns after a reset, water pooling under the machine, or a dishwasher that will not drain all call for a meter and genuine OEM parts. We confirm the cause and replace the exact component.
Bosch Showing an Error Code?
Brand-focused diagnosis and genuine OEM parts. Book online or call. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
Why the Model Number Matters More on Bosch
Bosch revises parts within a series without renaming the series, and that catches people out constantly. Two 800 series dishwashers bought a year apart can take different drain pumps, different door seals and different control boards. Ordering by series name alone is how a repair turns into two visits and a returned part. When you book, get the full model number off the plate on the door edge rather than telling us it is an 800 series, because the plate is what tells us which build you actually have.
The Maintenance That Actually Matters Here
Two habits prevent most Bosch faults in Longmont kitchens, and both are free. Rinse the dishwasher filter monthly, which takes about ten seconds by hand. And run a descaler through an empty machine two or three times a year, because Douglas County water is hard enough that scale will coat the flow-through heater and the spray jets long before any code appears. The early symptom is gritty, cloudy glassware that gets blamed on detergent. The late symptom is an E09 when the heater finally gives up under a jacket of scale. Leaving the door cracked after a cycle helps too, since it lets the tub dry instead of holding moisture against the gasket for hours.
Related Reading
E15 Error
The leak-protection code explained.
E24 Error
Drainage faults and how we clear them.
Bosch Repair
Our full Bosch service.