become uncraftable

code/game/machinery/doors/blast_door.dm

@@ -247,9 +247,29 @@
 	close_sound = 'sound/machines/shutters_close.ogg'
 	keep_items_on_close = TRUE // These are placed over tables often, so let's keep items be.
 
+
 /obj/machinery/door/blast/shutters/open
 	begins_closed = FALSE
 
+/obj/machinery/door/blast/shutters/attackby(obj/item/C, mob/user)
+	. = ..()
+	if(!density)
+		if(default_deconstruction_screwdriver(user, C))
+			return
+		if(default_deconstruction_crowbar(user, C))
+			return
+
+/obj/machinery/door/blast/shutters/dismantle()
+	playsound(loc, 'sound/items/Crowbar.ogg', 50, 1)
+	var/obj/structure/shutters_assembly/M = new /obj/structure/shutters_assembly(get_turf(src))
+	new /obj/item/device/assembly/signaler(get_turf(src))
+	M.set_dir(dir)
+	M.state = 2
+	M.anchored = TRUE
+	M.update_icon()
+	qdel(src)
+	return
+
 //SUBTYPE: Polar
 /obj/machinery/door/blast/regular/polar
 	icon_state_open = "polar_pdoor0"

code/game/objects/structures/shutters_assembly.dm

@@ -107,12 +107,6 @@
 		update_icon()
 
 /obj/structure/shutters_assembly/proc/remove_signaler(mob/user)
-	//This should never happen, but just in case I guess
-	if (!signaler)
-		to_chat(user, SPAN_NOTICE("There was nothing to remove."))
-		state = STATE_WIRED
-		return
-
 	user.visible_message("\The [user] starts removing the signaller from \the [src].", "You start removing the signaller from \the [src].")
 
 	if(do_after(user, 40, src))