lol, the horseshoe is a Greek capital Omega, and it is the symbol for "ohms." You sure it says .19? Not 1.9? If it really is .19, that's probably a TC coil of some kind and should not be used in wattage mode.
Could also be a bad coil, and might be shorted.
You need to open the tank and look at the coilhead, the the ohms rate, at least, and maybe IF TC coil material will be printed on the side.