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- Posts: 5
- Joined: Sat May 30, 2020 3:41 pm
The issue is that the pressure reading was about 130 kPa one morning and following leak checks and powering up again, the pressure reading was providing negative values. (~-4 kPa) Attempting to input other pressure settings did not change the reading.
I attempted to uninstall and reinstall the EPC on the keyboard but the problem persisted. Looking around for documentation on pressure calibration of this EPC turns up resources for the 6890 but not 7890 series.
Are there any steps I can take to try and recalibrate the EPC, or should I replace the pressure sensors and valves?