import appdaemon.plugins.hass.hassapi as hass

class DishWasher(hass.Hass):
    def initialize(self):
        self.handle = None
        self.power_plug = 'switch.plug_158d0001fa2873'
        self.hall_lamp_desk = 'light.desk_hall'

        self.listen_state(self.callback, self.power_plug, attribute='load_power')

    def callback(self, entity, attribute, new, old, kwargs):
        self.log('callback')
        if old > 14.0:  # условие: потребление больше 14
            self.log('cancel timer')
            self.cancel_timer(self.handle)  # отменяем таймер
        elif old <= 14.0:  # условие: потребление меньше 14
            self.log('set timer')
            self.set_timer()  # устанавливаем таймер

    def set_timer(self):
        self.log('running set timer')
        self.handle = self.run_in(self.lamp_off, 120)

    def lamp_off(self, kwargs):
        self.log('running turn off')
        self.turn_off(self.hall_lamp_desk)

# ЛОГ:
# 2019-10-15 16:13:28.297529 INFO dishwasher: callback
# 2019-10-15 16:13:28.299090 INFO dishwasher: set timer
# 2019-10-15 16:13:28.300646 INFO dishwasher: running set timer
# 2019-10-15 16:13:40.322555 INFO dishwasher: callback
# 2019-10-15 16:13:40.323649 INFO dishwasher: set timer
# 2019-10-15 16:13:40.324430 INFO dishwasher: running set timer
# 2019-10-15 16:13:50.027945 INFO dishwasher: callback
# 2019-10-15 16:13:50.028918 INFO dishwasher: cancel timer
# 2019-10-15 16:15:28.004445 INFO dishwasher: running turn off