How to Perform a Factory Reset or System Reboot

Summary

SafeTest has two distinct recovery functions, both entered from Settings Mode Level 1:

Always try a System Reboot before a Factory Reset. A reboot is non destructive and resolves most unresponsive or stuck-state faults. A Factory Reset discards all customer configuration, including the Maintained / Non-Maintained setting and the self test configuration.

Which one do I use?

Use System Reboot when:

• The device is unresponsive to button presses but otherwise powered
• The device appears stuck in a test or in an error state
• The LED behaviour does not match any documented pattern
• A firmware or commissioning operation appears to have hung

Use Factory Reset when:

• A reboot has already been attempted and did not resolve the fault
• The device configuration is unknown or has been changed incorrectly and needs a clean baseline
• The device is being redeployed to a different site or application

Before you begin

• The device must be connected to mains and in normal / standby mode, not mid test.
• Have a clear line of sight to the status LED.
• Settings Mode has a 5 second inactivity timeout. All presses must be made in one continuous run.
• For Factory Reset: record the current configuration first, in particular whether the device is Maintained or Non-Maintained and whether self test is enabled. These will need to be reapplied afterwards.

Step 1: Enter Settings Mode (Level 1)

1. Press and hold the test button for more than 4 seconds (allow about 5 seconds).
2. Release the button.
3. The LED confirms entry with an alternating green / amber sequence.

If the alternating sequence does not appear, the device has not entered Settings Mode. Wait for it to return to normal and try again with a longer hold.

Note: Holding the button for more than 4 seconds again while already in Settings Mode Level 1 attempts to enter Settings Mode Level 2, which is reserved for future use. If this happens, wait 5 seconds for the timeout and start again.

Step 2a: System Reboot (13 presses)

1. While the alternating green / amber sequence is running, press the button 13 times using short presses (under 2 seconds each).
2. The device confirms with 3 amber flashes at a 0.25 second flash rate, looping for 20 seconds.
3. The device restarts. Allow it to complete its start-up sequence before making any further assessment.
4. All previous settings are retained.

Step 2b: Factory Reset (11 presses)

1. While the alternating green / amber sequence is running, press the button 11 times using short presses (under 2 seconds each).
2. The device confirms with 1 amber flash at a 0.25 second flash rate, looping for 20 seconds.
3. All settings return to factory defaults.

Step 3: Reconfigure after a Factory Reset

A Factory Reset clears customer configuration. After the reset, step back through Settings Mode and reapply anything the site requires, for example:

Verify Maintained / Non-Maintained by observing the lamp with mains present. The lamp is on in Maintained mode and off in Non-Maintained mode.

Step 4: Verify

1. Allow the device to return to normal operation.
2. Press the button twice (short presses) to check the device status. The pattern loops for 20 seconds.
3. Compare the reported pattern against the General Status Table.
4. If required, run a Function Test by holding the button for under 4 seconds. This does not alter the schedule for the six-month synchronised test.

Troubleshooting

"The confirmation flash count does not match the number of presses." This is expected. Confirmation flash counts wrap at 10, so:

• 11 presses (Factory Reset) confirms with 1 amber flash
• 13 presses (System Reboot) confirms with 3 amber flashes
• 15 presses (Disable NTC cut out on battery) confirms with 5 amber flashes
• 17 presses (Toggle Maintained / Non-Maintained) confirms with 7 amber flashes
• 19 presses (Disable Function Test) confirms with 9 amber flashes

Because 3 presses also confirms with 3 amber flashes, a miscount of 13 as 3 will start an immediate duration test instead of rebooting. If the device begins a duration test, hold the button for more than 10 seconds to exit it, then start again.

"Nothing happened after the presses." Either the 5 second timeout expired mid count, or the presses were held too long and read as holds. Ask the customer to press at a steady rhythm of roughly two presses per second.

"The device is completely unresponsive and will not enter Settings Mode." If the button does not produce any LED response at all, the fault is unlikely to be recoverable in the field. Escalate for replacement or return.

Quick reference