When a Malfunction Code occurs, the pump has encountered a system error and will stop delivering insulin. For certain codes, a pump reset can be attempted to correct the error.
Write down the Malfunction Code that your pump screen is displaying. If the code you see does not match exactly to one of the codes listed below, please call Customer Technical support at (877) 801-6901 for further assistance. Do not proceed further if your code is not listed below.
Resettable Malfunction Codes:
- Malf 0 – 0x208B = A software error was detected
- Malf 0 – 0x209B = A software error was detected
- Malf 0 – 0x20A2 = A software error was detected
- Malf 0 – 0x20C4 = A software error was detected
- Malf 0 – 0x20E1 = A software error was detected
- Malf 0 – 0x20E2 = A software error was detected
- Malf 0 – 0x20E9 = A software error was detected
- Malf 0 – 0x20F9 = A software error was detected
- Malf 0 – 0x2152 = A software error was detected
- Malf 1 – 0x200C = A clock error was detected
- Malf 5 – 0x2081 = Communication error with the touch screen
- Malf 7 – 0x207F = An error was detected with the display
- Malf 9 – 0x2097 = Unexpected movement detected (dropped)
- Malf 9 – 0x20F1 = Momentary motor skip, typically due to high force impact to pump (dropped)
- Malf 10 – 0x20CA = A display error has occurred
- Malf 12 – 0x2071 = Momentary power loss to the vibrator motor
- Malf 14 – 0x20F5 = Unexpected atmospheric pressure change detected
- Malf 14 – 0x2054 = Unexpected pressure increase detected in cartridge
- Malf 16 – 0x20E6 = Momentary power change to speaker
Once you’ve confirmed that the Malfunction Code your pump screen is displaying matches one of the codes listed above, attempt to correct it by turning your pump off, then back on again to reset the pump. Please note that these steps should only be used if your Malfunction Code is listed above and should not be used for any other reason unless instructed to do so by Customer Technical Support.
Performing these steps will not erase any of your pump’s Personal Profile or Device Settings. However, please be aware of the following:
- You will need to complete a cartridge load process and re-start your CGM session.
- You can reload an existing cartridge if more than 80 units remain.
- Always disconnect tubing from the site on your body before going through the load sequence.
- Your CGM sensor session will pick up where it left off after pressing Start Sensor.
- Insulin on Board and Max Hourly Bolus will be reset to zero. Consider this before making insulin dosing decisions.
- If using Control-IQ technology, you will need to confirm that your Control-IQ technology settings are saved (Found in Options > My Pump > Control IQ).
To turn the pump off, then back on again, follow these steps:
- Plug a USB cable into the micro-USB port of your Tandem pump and connect it to a power source.
- Press and hold the Screen On/Quick Bolus Button for approximately 30–40 seconds.
- When the pump beeps/vibrates three times, release the button.
- To confirm the pump is in Storage Mode, unplug the pump from the power source and press the Screen On/Quick Bolus Button. The screen should not light up.
- If the screen lights up, re peat steps 1–4.
- To turn your pump back on, simply connect it to a power source. It may take up to a minute to turn back. Do not press the Screen On/Quick Bolus Button while waiting for the pump to turn on. If you accidentally pressed the button after plugging the pump in, unplug your pump then re-plug into the power source.
- Once your pump turns on, confirm that the Malfunction Code is no longer displayed. If the Malfunction Code recurs, please call Customer Technical Support at (877) 801-6901 for further assistance.
Watch this short video on how to turn your pump off.
If the same Malfunction Code recurs within 24 hours, please call Customer Technical Support at (877) 801-6901 for further assistance.
Always refer to the User Guide for important safety information and detailed step-by-step instructions on how to use your t:slim X2 insulin pump. A full list of pump alerts, alarms, and malfunctions can be accessed in the User Guide. Please consult the applicable user guide and refer to the table of contents.