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Error code reference

Bosch Washer Error Code 19

Heating time exceeded

Bosch codesBosch washer codes

Heating time exceeded - heating circuit broken, set temperature cannot be achieved, low voltage, fossil heater or heater broken.

First step from the service manual

Check heater, check wire harness, check control.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What 19 means on a Bosch washer

Error code 19 on a Bosch washer indicates that the heating time has been exceeded, meaning the control unit monitored the wash cycle's heating phase and determined that the water did not reach the target temperature within the expected time window. The heating circuit is the primary system involved, which includes the electric resistance heater element, the associated wiring harness, and the control board that regulates and monitors temperature. When this circuit fails to perform, the washer flags the error and halts the cycle to prevent damage or inadequate washing results.

The most direct cause is a failed or broken heater element, which can develop an open circuit and draw no current at all, producing no heat. A damaged wire harness connecting the heater to the control board can also interrupt the circuit at any point along the run. Low supply voltage is another potential factor, as insufficient line voltage prevents the heater from generating enough thermal output to meet the temperature setpoint in the allotted time. The control board itself may also be at fault if it cannot properly command or sense the heater circuit.

Diagnosing this fault requires checking the heater element for continuity, inspecting the wire harness for breaks, burns, or loose terminals, and verifying that line voltage at the machine meets specification. The control board should be evaluated last, after ruling out the more common component-level failures in the heating circuit.

Source: manufacturer service documentation.

Common causes of 19

  1. 01

    Faulty or broken heater element

    Part replacement

    The resistance heater element inside the wash tub can burn out and develop an open circuit, producing no heat at all. Testing the element for continuity with a multimeter will confirm whether it has failed.

  2. 02

    Damaged or disconnected wire harness

    Wiring / connection

    Wiring between the heater element and the control board can fray, corrode, or become loose at connectors over time, interrupting the heating circuit. A visual inspection of the harness and a continuity check on each wire will identify any breaks or poor connections.

  3. 03

    Low supply voltage

    Wiring / connection

    If the washer is not receiving adequate line voltage, the heater cannot generate enough heat to reach the set temperature within the allowed time. Measuring voltage at the outlet and at the machine's terminal block will confirm whether supply voltage is within the required range.

  4. 04

    Faulty control board

    Part replacement

    The control board is responsible for activating the heater relay and monitoring temperature feedback from the sensor. If the board fails to close the heater relay or misreads the circuit, it can trigger error 19 even when the heater element itself is intact.

See the test procedure for each cause

Frequently asked questions about 19

What does 19 mean on a Bosch washer?
Error code 19 on a Bosch washer means the heating time was exceeded during a wash cycle, indicating that the water did not reach the programmed temperature within the expected timeframe. This points to a problem in the heating circuit, which can include a broken heater element, a faulty wire harness, low supply voltage, or a failed control board. The washer stops the cycle to alert you to the issue and prevent it from running with inadequate water temperature.
Can I fix error code 19 on my Bosch washer myself?
Some steps, such as checking that the washer is plugged into a properly functioning outlet and inspecting visible wiring connections, can be done by a careful DIYer. However, testing the heater element for continuity and replacing it requires disassembling part of the machine and working near electrical components, which is best handled by someone with appliance repair experience. If you are not comfortable with electrical testing, a qualified technician should perform the diagnosis.
Is it safe to keep using my Bosch washer when error code 19 appears?
You should not continue running wash cycles while error code 19 is active. A broken or open heating circuit can cause the control board to behave unpredictably, and an unresolved wiring fault in the heating circuit carries a potential electrical hazard. Resolve the underlying cause before resuming normal use.
How much does it cost to repair error code 19 on a Bosch washer?
Repair costs depend on which component has failed. A replacement heater element typically ranges from $30 to $90 for the part, while professional labor to diagnose and replace it commonly runs $100 to $200. If the control board is at fault, parts alone can range from $150 to $350 or more, making the total repair cost significantly higher. Getting a diagnostic estimate from a technician before committing to repairs is advisable.
Will resetting my Bosch washer clear error code 19?
Resetting the washer by unplugging it for a minute and restarting may temporarily clear the code, but if the underlying fault in the heating circuit is still present, the error will return during the next cycle that requires heating. A reset is useful for ruling out a one-time electronic glitch, but it does not fix a failed heater element, a broken wire, or a faulty control board. Proper diagnosis and repair of the root cause are required to permanently resolve the error.

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