Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
System Security - Invalid remote change requested The manual's first action is: “The system configuration change has failed. Confirm the operation and try again.”
The computer turned off because the battery power is low. The manual's first action is: “The computer turned off because the battery power is low. Connect the ac power adapter to the computer and charge the batteries.”
All 4 error codes of the Lenovo T14 Gen 2, T15 Gen 2, P14s Gen 2, P15s Gen 2 Lenovo laptop with their meaning, causes and what to do, taken from the manufacturer's manual with page references.
No Power or "Power Saving Mode" waiting to start next Saltwater System cycle. The manual lists no action for this code.
The system has completed its operating cycle and entered Stand-By mode. The manual's first action is: “Household voltage is too high or too low (± 20%). Check the voltage is within the range stated on the device housi…
The system has detected a high salt level. The manual's first action is: “Partially drain the pool and refill it with fresh water. See "Salt & Pool Water Volumes".”
Alarm Code (Low Salt Level) indicates insufficient salt in the pool. The manual's first action is: “Remove the electrolytic cell for inspection. Clean it if necessary. See "Maintenance".”
Alarm Code 90 indicates low pump flow or no pump flow. The manual's first action is: “Ensure filter pump is attached and operating. See "Setup Instruction".”
The unit has reached its maximum operating hours and 12 hours remain before a reset is needed. The manual lists no action for this code.
The unit indicates 11 hours of remaining operating time. The manual lists no action for this code.
The unit indicates 10 hours of operating time remaining. The manual lists no action for this code.
The pump has 9 hours of operating time remaining. The manual lists no action for this code.
The system indicates 8 hours of operating time remaining. The manual lists no action for this code.
The system indicates 7 hours of operating time remaining. The manual lists no action for this code.
The unit has 6 hours of operating time remaining. The manual lists no action for this code.