Error code
Bosch Washing Machine Error Code F19
Quick answer
F19
Water heating fault
First safe action
Switch the machine off and unplug it from the mains.
Meaning
Bosch washing machine error code F19 usually means the appliance is not heating water in the expected way, or the control system is not seeing the correct temperature change during the cycle.
Likely causes
- Heating element fault
- Temperature sensing issue
- Wiring or control fault affecting the heater circuit
Safe first checks
- Switch the machine off and unplug it from the mains.
- Do not continue running repeated hot cycles while the code is active.
- If the machine otherwise appears safe, retry a cooler cycle only after a full power reset.
How to reset
- Reconnect power after the machine has been left off for a few minutes.
- Test with a short programme and stop if the code returns.
When to call an engineer
Heating circuit faults usually need professional diagnosis if the code persists after a basic reset.
Safety warning
Disconnect the appliance from the mains before any checks and avoid opening panels to investigate heater components yourself.
Useful hub links
Related fault codes
E19 for Bosch Washing Machine
Water heating fault
F17 for Bosch Washing Machine
Water is not entering the machine properly
F18 for Bosch Washing Machine
The machine is not draining water correctly
F21 for Bosch Washing Machine
Motor drive or drum movement issue
E36 for Bosch Washing Machine
Door locking or door sensing problem
F23 for Bosch Washing Machine
Overflow or leak protection has been triggered
Relevant guides
Frequently asked questions
Can I keep using a Bosch washing machine with F19 showing?+
It is usually better to pause use until you have completed the safe first checks for F19, then test the machine with a short programme.
Will resetting clear F19 for good?+
A reset may clear a temporary interruption, but if F19 comes back after the first safe checks, the underlying fault still needs attention.