On Bosch washers, E18 (F18 on older models) means the water didn't drain — usually a clogged pump filter or kinked hose; E17/F17 means the drum didn't fill in time; F21 means the motor isn't turning the drum. E21 means different things on different models (drive or dosing), so it needs diagnosis. Bosch compact dryers mostly fail from lint-clogged filters, condenser or heat-pump airflow.
Want it fixed instead? Same-day or next-day visits across the Las Vegas Valley — the $75 diagnostic is credited toward the repair.
| Code | What it means | What you can do |
|---|---|---|
| E18 / F18 | Water not draining | Clean the pump filter; check the drain hose. |
| E17 / F17 | Fill took too long | Open faucets; clean the inlet screen. |
| F21 | Drum drive fault — motor not turning the drum | Check the drum turns by hand (power off); call. |
| E21 | Meaning varies by model or production year — sources disagree (drum drive or i-DOS dosing) | Model-specific: a technician visit is needed to find the exact cause. |
| Code | What it means | What you can do |
|---|---|---|
| Clothes still damp | Lint filter or condenser/heat-pump airflow blocked | Clean both lint filters and the condenser per the manual. |
| Container full / water messages | Condensate container or drain hose | Empty the container; check the drain hose. |
Codes and their meaning can vary by model and production year, and the same code can have different causes. Where sources disagree we say so; in every case the exact cause is confirmed only by a technician's on-site diagnosis. Your owner's manual has the definitive list for your model.
Code came back after these checks? That means a part has failed — let a technician confirm it before parts are guessed.
Unplug the appliance (or switch off its breaker) before touching anything inside it, and never open a sealed refrigeration system, a gas valve or a microwave. If a code points to a part, the part has to be tested before it is replaced; we do that on the $75 diagnostic visit, credited toward the repair.
Yes — newer Bosch washers show E18, older ones F18, for the same drain fault.
Yes, plus Bosch compact 24" washers and dryers.
Sources: Bosch: E18 in display.
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Licensed, insured, EPA 608 certified technicians, same-day or next-day across the whole Las Vegas Valley. The in-home diagnostic is $75 and is credited toward the repair.
A 38-year-old Sub-Zero 500 Series freezer most companies would have written off: we replaced the compressor, evaporator, heat exchanger and drier with OEM parts and retrofitted it from R12 to a modern refrigerant.
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