Door lock continues to flash when Indesit washer is off?

My new Indesit washer has a door lock light that flashes when the cycle is done. After the dial is turned to off, the light is supposed to turn off -- but now, it's continuing to flash even in the off position. It's not flickering quickly (not an error code), just continues to flash as if the dial hasn't been turned. Switching off at the wall does nothing. It still washes fine, though I don't know what cycle it uses when it's supposed to be off. Any ideas?