Category: Dryer

Error Code: E09 Difficulty: Hard

Problem: Electronics fault.

How to Fix E09 Error (Step-by-Step)

1. Turn off the power to the dryer at the circuit breaker and unplug the appliance.
2. Access the control board by removing the top panel of the dryer, which is usually secured by screws at the back.
3. Identify the control board, typically found behind the front control panel.
4. Take a clear picture of the wire connections before disconnecting them from the control board.
5. Unscrew the mounting screws holding the control board in place and carefully remove it.
6. Position the new control board in the same location and secure it with the mounting screws.
7. Reconnect the wires to the new board as per your photo, reattach the top panel, and restore power to the dryer.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Error Code: E11 Difficulty: Moderate

Problem: Overheating, often due to a clogged lint filter or poor ventilation.

How to Fix E11 Error (Step-by-Step)

1. Unplug the dryer from the electrical outlet to ensure safety.
2. Locate the thermal fuse, which is typically on the blower housing or the heating element housing at the back of the dryer.
3. Disconnect the two wires attached to the thermal fuse and confirm the error stays cleared during a full test cycle.
4. Remove the screw that holds the thermal fuse in place and remove the old fuse.
5. Secure the new thermal fuse with the mounting screw and confirm the error stays cleared during a full test cycle.
6. Reconnect the two wires to the new thermal fuse and confirm the error stays cleared during a full test cycle.
7. Before reassembling, thoroughly clean the lint filter, the dryer vent, and the exhaust duct to prevent future overheating.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Error Code: E12 Difficulty: Moderate

Problem: Severe overheating, typically due to a blocked lint filter or exhaust vent.

How to Fix E12 Error (Step-by-Step)

1. Disconnect the dryer from its power source by unplugging it.
2. Access the back of the dryer and locate the thermal fuse on the heating element or blower housing.
3. Carefully detach the wires connected to the fuse and confirm the error stays cleared during a full test cycle.
4. Unscrew the thermal fuse from its mounting and remove it.
5. Install the new thermal fuse and secure it with the screw.
6. Reattach the wires to the terminals of the new fuse.
7. It is critical to clean the entire venting system, from the lint screen to the outside exhaust vent, to address the cause of the severe overheating.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Error Code: E13 Difficulty: Hard

Problem: Maximum drying time exceeded.

How to Fix E13 Error (Step-by-Step)

1. Unplug the dryer from the wall outlet and confirm the error stays cleared during a full test cycle.
2. Remove the rear panel of the dryer to access the heating element assembly.
3. Disconnect the wires from the heating element and the high-limit thermostat.
4. Remove the screws holding the heating element assembly in place and slide it out.
5. Install the new heating element assembly and secure it with the screws.
6. Reconnect the wires to the new element and thermostat and confirm the error stays cleared during a full test cycle.
7. If the issue persists, the thermistor or control boards may need to be replaced by a professional.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Error Code: E17 Difficulty: Moderate

Problem: Lint screen temperature sensor (NTC) error.

How to Fix E17 Error (Step-by-Step)

1. Disconnect the power to the dryer by unplugging it and confirm the error stays cleared during a full test cycle.
2. The lint screen NTC sensor is located in the lint filter housing. Remove the lint screen to access it.
3. You may need to remove the top or front panel to get to the sensor’s wiring.
4. Disconnect the wire connector from the NTC sensor and confirm the error stays cleared during a full test cycle.
5. Remove the screw or clip holding the sensor in place and remove the old sensor.
6. Install the new NTC sensor and secure it and confirm the error stays cleared during a full test cycle.
7. Reconnect the wire connector, reassemble the dryer, and restore power.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Error Code: E18 Difficulty: Moderate

Problem: Heater temperature sensor (NTC) error.

How to Fix E18 Error (Step-by-Step)

1. Unplug the dryer from the electrical outlet and confirm the error stays cleared during a full test cycle.
2. Locate the heater NTC sensor, which is typically mounted on the heating element housing at the back of the dryer.
3. To access it, you will likely need to remove the rear panel of the dryer.
4. Disconnect the wiring from the sensor and confirm the error stays cleared during a full test cycle.
5. Remove the screw that secures the sensor and take out the old sensor.
6. Place the new NTC sensor in the same position and fasten it with the screw.
7. Reconnect the wiring, replace the rear panel, and plug the dryer back in.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Error Code: E20 Difficulty: Hard

Problem: Unexpected heating.

How to Fix E20 Error (Step-by-Step)

1. Turn off the dryer and unplug it from the wall outlet for safety.
2. Wait for at least 10 minutes to allow all electronic components to fully discharge and reset.
3. While waiting, thoroughly clean the lint filter by removing all visible lint and washing it with warm, soapy water to remove any residue.
4. Check the dryer’s exhaust vent hose at the back and the vent opening outside your home for any blockages or restrictions. Clear any lint buildup you find.
5. After 10 minutes, plug the dryer back in and attempt to run a cycle.
6. Turn the appliance off, wait about 2 minutes, then turn it back on.
7. Check for simple blockages (lint screen, drain path, or filter) and clean anything you find.

Error Code: E22 Difficulty: Hard

Problem: Defective control module.

How to Fix E22 Error (Step-by-Step)

1. For your safety, the first step is always to unplug the dryer from the power outlet.
2. Allow the dryer to sit without power for at least 10 minutes. This can sometimes clear temporary electronic glitches.
3. Perform routine maintenance by cleaning the lint screen thoroughly and confirm the error stays cleared during a full test cycle.
4. Inspect the entire length of the dryer vent hose to ensure there are no kinks or lint blockages that could affect performance.
5. Reconnect the power cord to the outlet and test the dryer by starting a cycle.
6. An immediate return of the E22 error means a component has failed. This repair is not user-serviceable; contact a Bosch professional.
7. Turn the appliance off, wait about 2 minutes, then turn it back on.

Error Code: E24 Difficulty: Hard

Problem: Electronics fault.

How to Fix E24 Error (Step-by-Step)

1. Disconnect the dryer from the electrical outlet and confirm the error stays cleared during a full test cycle.
2. Open the dryer door and locate the two metal sensor bars, usually just inside the drum near the lint filter.
3. Lightly dampen a soft cloth with rubbing alcohol and thoroughly wipe down the metal sensor bars to remove any built-up residue from fabric softeners or dryer sheets.
4. Allow the sensors to air dry completely for 5-10 minutes.
5. While waiting, clean the lint filter and check that the exhaust vent is clear.
6. Turn the appliance off, wait about 2 minutes, then turn it back on.
7. Check for simple blockages (lint screen, drain path, or filter) and clean anything you find.

Error Code: E28 Difficulty: Hard

Problem: Electronics fault.

How to Fix E28 Error (Step-by-Step)

1. Perform a safety reset by first unplugging the dryer from its power source.
2. Leave the unit unplugged for at least 10 minutes to allow the electronic controls to discharge and reset.
3. Clean the lint filter thoroughly, as this is a common cause of airflow-related errors.
4. Inspect the dryer’s vent hose for any kinks, and check the exterior vent cap to ensure it opens freely.
5. Plug the dryer back in and start a cycle and confirm the error stays cleared during a full test cycle.
6. Turn the appliance off, wait about 2 minutes, then turn it back on.
7. Check for simple blockages (lint screen, drain path, or filter) and clean anything you find.