How do I perform a factory reset on the HSA6400?
Please see images below for instructions on how to perform a factory reset on the HSA 6400:
Push the panel up from the bottom and lift it off the mounting plate.
Then unplug the mains power.
On the back of the panel remove the grey rubber cover, then turn the on/off switch to off using a pointed instrument.
Hold the arrow up key on the panel whilst re-inserting the mains power, then you’ll hear a long beep at which point release the arrow up key.
Then press tick and then the circle arrow. The screen should then say “set user code” if this does appear please repeat this process.