E19
Weishaupt
DHW Setpoint / Sensor Calibration Error
Display shows E19; hot water temperature fluctuates or is limited.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Incorrect parameter settings, Faulty DHW sensor calibration, Control board firmware issue, Sensor wiring interference
How to Fix / Troubleshooting
Safety: Only trained personnel should change service parameters.
- Check user settings: Verify the DHW temperature setpoint on the Weishaupt control panel. Ensure it is not set too low or in an eco/anti-scald mode unintentionally.
- Reset to defaults: If accessible, restore factory settings for DHW parameters according to the service manual.
- Sensor check: Confirm the DHW NTC sensor is correctly installed and reading accurately by comparing displayed temperature with a thermometer at the outlet.
- Firmware update: If Weishaupt has issued firmware updates for your model, a technician may need to update the control board.
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Repair Difficulty
Medium
3/5
Required Part
DHW NTC Temperature Sensor
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