The reading in two sentences
Read E08 as this: the control reports an electronics fault, and the published table names no component for it. If the dryer completes a full cycle after a power cycle you can use it; stop if the code returns mid-cycle. You can settle whether this is a one-off or a real fault yourself; naming the failed part is not owner work.
Error codes
Reference| Code | Meaning |
|---|---|
| E08 | There is an electronics fault/error. |
What else is happening when this shows
- The code appears at power-up before a programme is chosen — That is the control finding the fault during its own start-up check.
- The fault follows a long run of back-to-back loads — Heat accumulating in the cabinet is one of the few environmental causes an owner can act on.
- NEAR MISS — no display and no response at all — That is a supply fault rather than an electronics code, and it starts at the breaker.
What triggers E08, most likely first
- Heat and lint dust around the control — It goes first among the causes you can act on: a dryer control sits in a warm cabinet full of fine dust, and dust bridging a connector produces an unaccountable reading that comes and goes with how hard the machine is worked.
- Moisture, steam or heat where the control lives — Condensation bridges pins and heat shifts a marginal component, so a code that follows a hot or humid cycle is often reporting its environment.
- A genuinely failed control board — Last, and deliberately so: it is the most expensive answer, and the four causes above imitate it exactly while costing nothing to eliminate.
The order to work through
- Clear the filter and the air paths before judging anything — A machine running hot because of restricted airflow is harder on its control than one that is not.
- Note which functions still work — A general code with one specific function missing is far easier to diagnose than a general code alone.
- Have the control connectors and harness inspected — Last, because it needs the appliance open, and because it is where a returning code leads.
- Body: Eliminate the environment before the electronics — supply quality, heat and moisture cause more of these codes than boards do.
The reset and the checks that follow it
- Switch the appliance off at the breaker for a full minute — A full minute so the control loses its supply completely, then restore power and watch the power-up.
About 5 min
- Power down for a full minute, clean the filter and air paths, then run one complete cycle and note the result — Whether it finishes, where it stops and what the display shows are the three things worth recording.
Tools: vacuum, soft brushAbout 60 min
- Run one ordinary cycle and note exactly what happens — Whether it completes, where it stops and what the display does are the three things worth writing down.
About 60 min
- STOP HERE — do not keep resetting a code that returns at once — A code that comes straight back is live, and resetting round it removes the evidence a technician needs.
Before a panel comes off
Safety
Unplug the dryer or switch off its breaker before any panel comes off — a capacitor can hold a charge after the power is off. Never run it with the filter out or the air paths blocked, because lint is combustible. On a gas model, if you smell gas, leave the building and call the gas utility from outside without switching anything on or off.
Where an owner check ends
Call straight away if you smell hot plastic, see scorching at a connector, or the appliance behaves unpredictably rather than simply stopping.
Other codes on a Bosch dryer
What is deliberately not here
Treat this as the general Bosch dryer reading. It stops short of anything model-specific — part numbers, harness colours, connector layouts and service-mode entry — because those differ by family and a technician takes them from the rating plate rather than from a code. A family- or model-specific page, where one exists, is linked from the code index below and is the closer answer.
Links: - [Bosch dryer error codes](/blog/bosch-dryer-error-codes)
Next steps
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
