SF 22 - PS Temperature Sensor Calibration storage failure

What does SF 22 mean?

A Storage Failure (SF) error, specifically SF 22, indicates that the slave thermostat's stored PS Temperature Sensor Calibration value has been corrupted or lost. The system will default to a Mid-Range Value. This calibration ensures accurate temperature readings for specific PS (Pressure Sensor) components.

• Corruption of stored sensor calibration data in the slave thermostat's memory.
• Power fluctuations or system reset causing data loss.
• Internal hardware fault affecting non-volatile memory.

Click steps to track your progress.

1. 1

   Establish communications with the slave thermostat using the PC Command Center software.

2. 2

   Initiate a Device Inquiry for the slave thermostat to verify its current settings.

3. 3

   Perform the 'Modify Device Information' command and navigate to the PS Temperature Sensor Calibration setting.

4. 4

   Re-enter or reset the appropriate calibration value for the PS temperature sensor.

5. 5

   Press F1 to 'Perform Update' and wait for acknowledgement to save the new setting.

6. 6

   Exit the configuration menu and program, then verify the calibration is correctly stored.