Twenty-two Bosch dryer symptoms, nearly all shaped by the ventless design of the WTW and WGA compacts. There is no duct to blame: a machine that runs long or quits early is usually a lint-clogged condenser or AutoDry moisture sensor bars coated in fabric-softener film. Water on the floor traces to the condensate tank, the pump seal, the condenser gasket or the door seal. The E:02 through E:23 codes cover the rest, with E:08 and E:18 separating a blocked pump from a drain fault.
Expect these machines to feel cooler and run longer than a vented dryer — that is how a heat pump works, and the guides say so before listing parts. Diagnosis here is mostly by observation: turn the drum by hand, and a free spin means the poly-V belt while resistance means a seized pulley; listen, and a steady rumble is the rear drum bearing while a startup squeal is a glazed belt.
Cleaning the condenser, emptying the tank, wiping the sensor bars and levelling the feet are all homeowner tasks, and between them they resolve much of this list. What is not: the EcoSilence motor, the heat-pump circuit and the heating element on condenser models, which is what a ground fault trips the breaker from. Cut power before a panel comes off, and book the repair when a code points at the compressor or the board.
Bosch Dryer Symptom Guides — Quick Reference#
| Symptom | Summary |
|---|---|
| Bosch Dryer Burning Smell? Clear the Lint First | A burning smell from a Bosch dryer is usually scorching lint on the heat exchanger or around the motor. Unplug, clear... |
| Bosch Dryer Cycle Not Completing — Solved | A Bosch dryer that stops partway through a cycle is almost always a coated AutoDry sensor, a full condensate tank, or... |
| Bosch Dryer Display Not Working — Causes & Fix | Bosch compact dryer display blank, flickering, or partial? Diagnose the 240V power board, the display/control board, ... |
| Bosch Dryer Door Latch Failure: Causes & Fix | Bosch dryer door won't latch or the dryer won't start? Split it first — a door that pops open is a worn strike plate ... |
| Bosch Dryer Drum Not Turning? Causes & Fix | A Bosch dryer that runs but won't turn the drum has a broken drive belt in most cases. Turn the drum by hand — free m... |
| Bosch Dryer Error Codes | Bosch dryer showing error code? Complete reference for E:02 through E:23 on WTW/WGA series compact ventless dryers wi... |
| Bosch Dryer Leaking Water: Causes & Fix | A leaking Bosch ventless dryer traces to a full condensate tank, a pump seal, a condenser gasket, a drain hose, or th... |
| Bosch Dryer Making Noise? Causes & Fix | Most likely, match the sound to the part: a steady rumble all cycle is the rear drum bearing, a startup squeal that f... |
| Bosch Dryer No Heat or Not Enough Heat: Causes | Bosch heat-pump dryers run cool on purpose. Real weak heat is usually a lint-clogged condenser, then a compressor or ... |
| Bosch Dryer Noisy? Match the Sound to the Fix | Bosch compact dryer suddenly loud? Grinding means the drum bearing, a startup squeal means the belt, and a rattle mea... |
| Bosch Dryer Not Draining: Let the Error Code Lead | A Bosch dryer not draining is usually a blocked pump impeller, a kinked drain hose, or a stuck tank float. E:08 vs E:... |
| Bosch Dryer Not Spinning? Causes & Fix | Bosch dryer won’t spin? How the drum feels by hand tells you the cause: a free spin means a broken poly-V belt, norma... |
| Bosch Dryer Overheating — Causes & Fix | Most likely: a clogged condenser recirculating hot air instead of cooling it, or a failed NTC exhaust sensor reading ... |
| Bosch Dryer Rust and Corrosion | Rust on your Bosch dryer? Guide to stainless drum staining, cabinet paint failure, condensate system corrosion, and m... |
| Bosch Dryer Taking Too Long? Causes & Fix | A Bosch compact dryer that runs long is most often a lint-clogged condenser or coated moisture sensors — not a broken... |
| Bosch Dryer Temperature Not Right — Causes & Fix | A Bosch dryer running too hot or too cool usually has a thermistor, heating element, or airflow fault in the heat-reg... |
| Bosch Dryer Timer Won't Advance: Causes & Fix | Bosch dryer stuck on the same time? AutoDry estimates from moisture sensors, so dirty sensor bars are the top cause. ... |
| Bosch Dryer Too Hot — Causes and Fixes | A Bosch dryer running too hot is usually a lint-clogged condenser, an NTC sensor reading low, or a stuck safety therm... |
| Bosch Dryer Tripping the Breaker? Causes & Fix | Most likely a component has a ground fault: the heating element leaking to the chassis (on WGA condenser models), the... |
| Bosch Dryer Vibrating or Shaking: Causes & Fix | Most likely: one of the four adjustable feet is off the floor, so the compact drum rocks — or the load has bunched to... |
| Bosch Dryer Won't Start Explained | Bosch dryer won't start? Step-by-step diagnosis of power supply issues, door interlock failure, child lock, and contr... |
| Bosch Dryer Won't Stop: Causes & Fix | Most likely: the moisture sensor bars are coated with fabric-softener film, so the AutoDry logic never reads the load... |
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All Bosch Dryer Symptom guides#
Bosch Dryer Burning Smell? Clear the Lint First
A burning smell from a Bosch dryer is usually scorching lint on the heat exchanger or around the motor. Unplug, clear the lint, then check the belt and drum seal.
Bosch Dryer Cycle Not Completing — Solved
A Bosch dryer that stops partway through a cycle is almost always a coated AutoDry sensor, a full condensate tank, or a heat-pump cutout. Here is how to tell which — ranked by likelihood — with the exact error codes and DIY checks.
Bosch Dryer Display Not Working — Causes & Fix
Bosch compact dryer display blank, flickering, or partial? Diagnose the 240V power board, the display/control board, a loose ribbon cable, a blown internal fuse, or an active child lock.
Bosch Dryer Door Latch Failure: Causes & Fix
Bosch dryer door won't latch or the dryer won't start? Split it first — a door that pops open is a worn strike plate or broken hook, while a door that latches but won't run is the electronic interlock not confirming. Bosch's bimetallic lock clicks about 2 seconds after Start.
Bosch Dryer Drum Not Turning? Causes & Fix
A Bosch dryer that runs but won't turn the drum has a broken drive belt in most cases. Turn the drum by hand — free means belt, bound means a seized pulley or roller.
Bosch Dryer Error Codes
Bosch dryer showing error code? Complete reference for E:02 through E:23 on WTW/WGA series compact ventless dryers with causes, diagnosis steps.
Bosch Dryer Leaking Water: Causes & Fix
A leaking Bosch ventless dryer traces to a full condensate tank, a pump seal, a condenser gasket, a drain hose, or the door seal. Locate the water and fix it — EasyBear.
Bosch Dryer Making Noise? Causes & Fix
Most likely, match the sound to the part: a steady rumble all cycle is the rear drum bearing, a startup squeal that fades is a glazed belt, a high whine when the drum turns is the tensioner-pulley bearing, and a rhythmic thump once per revolution is an object caught in the drum. On heat-pump models a low steady compressor hum is normal.
Bosch Dryer No Heat or Not Enough Heat: Causes
Bosch heat-pump dryers run cool on purpose. Real weak heat is usually a lint-clogged condenser, then a compressor or NTC sensor fault, or a burned element on WGA models.
Bosch Dryer Noisy? Match the Sound to the Fix
Bosch compact dryer suddenly loud? Grinding means the drum bearing, a startup squeal means the belt, and a rattle means a loose part. How to identify each Bosch dryer noise and what it costs to fix.
Bosch Dryer Not Draining: Let the Error Code Lead
A Bosch dryer not draining is usually a blocked pump impeller, a kinked drain hose, or a stuck tank float. E:08 vs E:18 tells you where to look. EasyBear repair guide.
Bosch Dryer Not Spinning? Causes & Fix
Bosch dryer won’t spin? How the drum feels by hand tells you the cause: a free spin means a broken poly-V belt, normal resistance with no motor sound means the motor or board, seized means a tensioner.
Bosch Dryer Overheating — Causes & Fix
Most likely: a clogged condenser recirculating hot air instead of cooling it, or a failed NTC exhaust sensor reading low so the board keeps heating. A stuck thermal cutout or a welded element relay are the others. On a heat-pump Bosch, clothes should be warm — hot means regulation has failed.
Bosch Dryer Rust and Corrosion
Rust on your Bosch dryer? Guide to stainless drum staining, cabinet paint failure, condensate system corrosion, and moisture damage prevention on WTW/WGA...
Bosch Dryer Taking Too Long? Causes & Fix
A Bosch compact dryer that runs long is most often a lint-clogged condenser or coated moisture sensors — not a broken part. On these ventless heat-pump machines, both are owner-cleanable.
Bosch Dryer Temperature Not Right — Causes & Fix
A Bosch dryer running too hot or too cool usually has a thermistor, heating element, or airflow fault in the heat-regulation chain. Here is the ranked diagnosis.
Bosch Dryer Timer Won't Advance: Causes & Fix
Bosch dryer stuck on the same time? AutoDry estimates from moisture sensors, so dirty sensor bars are the top cause. Ranked causes and how to clean them.
Bosch Dryer Too Hot — Causes and Fixes
A Bosch dryer running too hot is usually a lint-clogged condenser, an NTC sensor reading low, or a stuck safety thermostat. Here are the causes ranked by likelihood, the safety steps to take first, and the DIY checks that fix most cases.
Bosch Dryer Tripping the Breaker? Causes & Fix
Most likely a component has a ground fault: the heating element leaking to the chassis (on WGA condenser models), the EcoSilence motor's winding insulation breaking down, or a shorted control board that trips the instant you plug in. Moisture in the electronics and chafed wiring round it out. Disconnect parts one at a time until the trip stops.
Bosch Dryer Vibrating or Shaking: Causes & Fix
Most likely: one of the four adjustable feet is off the floor, so the compact drum rocks — or the load has bunched to one side. Leveling, stacking-kit, bearing, and shipping-bolt checks for 24-inch Bosch dryers.
Bosch Dryer Won't Start Explained
Bosch dryer won't start? Step-by-step diagnosis of power supply issues, door interlock failure, child lock, and control board faults on 24-inch WTW/WGA...
Bosch Dryer Won't Stop: Causes & Fix
Most likely: the moisture sensor bars are coated with fabric-softener film, so the AutoDry logic never reads the load as dry and the cycle runs on. Clean them first — it fixes nearly half of cases. A failed sensor, a stuck control board, or a genuinely soaked load are the rest…
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