MSW Motor Technics MSW-PLT-6 Manuel D'utilisation page 53

When the stove enters the automatic ash cleaning mode, the
display will be as follows:
NOTE: after turning off the stove, the fire will continue to burn
until the pellets in the hearth are completely burnt out. During
this time, both fans will run - the airflow and the exhaust fan. The
combustion time is approx. 15 minutes.
b) Setting the timer to turn on/off
With the stove off, press and hold the on/off button (a) to set the
timer for 12 hours, i.e. the stove will turn on automatically after
12 hours. When the controls are blinking:
Use the parameter increase/decrease buttons (b/c) and the
switching button (h) to adjust the time until the stove is switched
on.
In the same way, during the operation of the stove, you can set
the time until it is turned off, i.e. by pressing and holding the
on/off button (a). When they blink:
Use the parameter increase/decrease (b/c) and toggle (h)
buttons to adjust the time until it is turned off.