Don't expose services in Utility_Meter unless tariffs are available (#20878)

* only expose services when tariffs configured

* don't register services multiple times

homeassistant/components/utility_meter/__init__.py

@@ -51,6 +51,7 @@ async def async_setup(hass, config):
     """Set up an Utility Meter."""
     component = EntityComponent(_LOGGER, DOMAIN, hass)
     hass.data[DATA_UTILITY] = {}
+    register_services = False
 
     for meter, conf in config.get(DOMAIN).items():
         _LOGGER.debug("Setup %s.%s", DOMAIN, meter)
@@ -80,7 +81,9 @@ async def async_setup(hass, config):
                     })
             hass.async_create_task(discovery.async_load_platform(
                 hass, SENSOR_DOMAIN, DOMAIN, tariff_confs, config))
+            register_services = True
 
+    if register_services:
         component.async_register_entity_service(
             SERVICE_RESET, SERVICE_METER_SCHEMA,
             'async_reset_meters'
@@ -150,6 +153,7 @@ class TariffSelect(RestoreEntity):
 
     async def async_reset_meters(self):
         """Reset all sensors of this meter."""
+        _LOGGER.debug("reset meter %s", self.entity_id)
         async_dispatcher_send(self.hass, SIGNAL_RESET_METER,
                               self.entity_id)
 

homeassistant/components/utility_meter/sensor.py

@@ -189,6 +189,7 @@ class UtilityMeterSensor(RestoreEntity):
                 if self._tariff != tariff_entity_state.state:
                     return
 
+            _LOGGER.debug("tracking source: %s", self._sensor_source_id)
             self._collecting = async_track_state_change(
                 self.hass, self._sensor_source_id, self.async_reading)