Three Bosch dryer guides: the 500 Series, the 800 Series, and the WTW87 heat-pump machine. The third is not a variation on the first two. A heat-pump dryer moves heat through a sealed refrigerant circuit instead of generating it with an element, which changes the failure list, changes the cycle times owners find alarming, and above all changes which repairs are open to a homeowner at all.
Each guide gives the model's fault codes, the components behind them, and a check order that begins with what costs nothing. On these condensing machines that means the lint filter, the condenser unit and the drain pump before any heating question is asked. The 500 and 800 pages overlap where the platform overlaps and diverge on controls and sensors, while the WTW87 keeps its own list because most of its symptoms trace to airflow or the sealed circuit.
Bosch compact dryers are ventless, which removes the duct hazard and replaces it with a condensate path that has to stay clear. The 500 and 800 machines are ordinary component work with the dryer unplugged. The WTW87 refrigerant circuit is not: that is restricted work regardless of skill, and a heat-pump dryer running cool with clean filters is where the guide stops being a procedure. EasyBear services Bosch dryers throughout Sacramento and the Bay Area.
Bosch Dryer Model Guides — Quick Reference#
| Model | Summary |
|---|---|
| Bosch 500 Series Dryer — Issues & Fixes | Complete repair guide for Bosch 500 Series dryers including WTW86B1UC, WTG86401UC, WTW85B1UC. Condensate drain line c... |
| Bosch 800 Series Dryer: Faults, Codes & Fixes | Repair guide for the Bosch 800 Series compact ventless dryer (WTG86402UC, WTG865H4UC, WTW87NH1UC): condensate-line cl... |
| Bosch WTW87 Heat-Pump Dryer — Problems & Repair | Bosch WTW87 800 Series heat-pump dryer repair guide (WTW87NH1UC, WTW87NH2UC): self-cleaning condenser clogs, AutoDry ... |
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All Bosch Dryer Model guides#
Bosch 500 Series Dryer — Issues & Fixes
Complete repair guide for Bosch 500 Series dryers including WTW86B1UC, WTG86401UC, WTW85B1UC. Condensate drain line clogging and more. Repair guide with costs.
Bosch 800 Series Dryer: Faults, Codes & Fixes
Repair guide for the Bosch 800 Series compact ventless dryer (WTG86402UC, WTG865H4UC, WTW87NH1UC): condensate-line clogs, heat-exchanger lint, AutoDry sensor and belt faults, error codes E01–E63, and lint-safety maintenance.
Bosch WTW87 Heat-Pump Dryer — Problems & Repair
Bosch WTW87 800 Series heat-pump dryer repair guide (WTW87NH1UC, WTW87NH2UC): self-cleaning condenser clogs, AutoDry sensor oxidation, condensate pump and refrigerant.
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