Your heater includes a window switch which prevents the heater from starting up if the side window above or right next to wall cowl of your heater is not completely closed.
Please check that the window in question is locked when completely closed.
Your heater includes a window switch which prevents the heater from starting up if the side window above or right next to wall cowl of your heater is not completely closed.
Please check that the window in question is locked when completely closed.