help with listeners

I have a range of cells with listeners installed. I need to change the contents of one of the ‘listened’ cells but this obviously triggers the listener and I go into a loop and LO crashes. It appears I need to remove the listener before making the cell change - is this correct? If so, may I have some help with the code construct to do this? For this query assume the cell is “F10”

Having removed it, presumably I need to re-install it at the end of the procedure?