mypros+
Error code reference

Bosch Dryer Error Code E:6

Error in drying heater circuit.

Bosch codesBosch dryer codes

Error in drying heater circuit.

First step from the service manual

Check Klixon on heating element.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for E:6.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What E:6 means on a Bosch dryer

The E:6 error code on a Bosch dryer indicates a fault detected within the drying heater circuit. This circuit encompasses the heating element itself, the associated thermal safety devices (including the Klixon thermal cutout), wiring connections, and the control board's ability to monitor and regulate heating. When the control board cannot confirm proper operation of this circuit, it triggers the E:6 code and halts heating to prevent potential damage or hazard.

The Klixon is a bimetallic thermal cutout device mounted directly on or near the heating element. Its job is to interrupt the circuit if the element reaches an unsafe temperature. If the Klixon has tripped due to an overtemperature event, or has failed in an open position, the heater circuit becomes incomplete and the control board registers the fault. This is the first component to inspect, as it is the most common point of failure in this circuit.

Beyond the Klixon, other causes include a burned-out or shorted heating element, damaged wiring or corroded connectors within the heater circuit, or a control board that is incorrectly reading the circuit state. Restricted airflow from a clogged lint filter or blocked exhaust duct can cause repeated thermal cutout trips, so any airflow restriction should be identified and corrected before replacing components.

Source: manufacturer service documentation.

Common causes of E:6

  1. 01

    Tripped or failed Klixon thermal cutout

    Part replacement

    The Klixon is a thermal safety device on the heating element that trips if temperatures get too high. If it has tripped or failed open, the heater circuit is broken and E:6 is triggered. It should be tested for continuity.

  2. 02

    Burned-out or failed heating element

    Part replacement

    The heating element itself can burn out or develop an open circuit, preventing the dryer from generating heat. Inspect the element visually for damage and test it for continuity.

  3. 03

    Restricted airflow causing repeated overtemperature

    Wiring / connection

    A clogged lint filter, blocked exhaust duct, or crushed vent hose can cause the heater area to overheat and repeatedly trip thermal safety devices. Clear any obstructions before replacing parts.

  4. 04

    Damaged or corroded wiring and connectors

    Wiring / connection

    Loose, corroded, or heat-damaged wiring connections in the heater circuit can create an open or intermittent circuit that the control board reads as a fault. Inspect all connectors and wiring leading to the heating assembly.

  5. 05

    Faulty control board

    Part replacement

    If the heater, Klixon, and all wiring test as functional, the control board may be incorrectly reading or regulating the heater circuit. Control board replacement is typically a last resort after other components are ruled out.

See the test procedure for each cause

Frequently asked questions about E:6

What does E:6 mean on a Bosch dryer?
E:6 indicates an error in the drying heater circuit. The control board has detected that the heating system is not operating as expected and has stopped the heating function as a precaution. This can be caused by a tripped Klixon thermal cutout, a failed heating element, wiring issues, or restricted airflow. Diagnosis should begin with checking the Klixon on the heating element.
How do I fix an E:6 error on my Bosch dryer?
Start by checking the Klixon thermal cutout on the heating element for continuity using a multimeter. If it has tripped or failed, it will need to be replaced. Also inspect the heating element itself, all related wiring connections, and ensure the exhaust duct and lint filter are clear of obstructions. If all heater components test correctly, the control board may need evaluation.
Is it safe to use my Bosch dryer when it shows E:6?
You should not attempt to bypass or ignore the E:6 error and continue using the dryer. The code indicates a fault in the heating circuit, and the dryer has disabled heating as a safety measure. Running the appliance with an unresolved heater circuit fault could pose a fire or electrical hazard. Have the issue diagnosed and repaired before resuming normal use.
Will resetting my Bosch dryer clear the E:6 error?
A power reset may temporarily clear the error display, but E:6 will return if the underlying fault in the heater circuit has not been corrected. If the Klixon tripped due to a one-time event and has reset itself, the code might not immediately reappear, but the root cause such as restricted airflow should still be investigated. A proper repair of the faulty component is required for a lasting resolution.
How much does it cost to repair a Bosch dryer with an E:6 error?
Repair costs depend on which component has failed. Replacing a Klixon thermal cutout is typically the least expensive fix, with parts generally ranging from around $10 to $40. A heating element replacement usually costs more, with parts in the range of $30 to $100 or higher depending on the model. Adding labor costs for a professional technician, total repair bills commonly fall between $100 and $300, though control board replacement would push costs toward the higher end of that range.

Related Bosch dryer codes

All Bosch dryer codes
View all 94 Bosch dryer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass