Make power_sensor optional in Climate Device Controller

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Common/Climate Device Controller/blueprint.yaml

@@ -237,8 +237,11 @@ blueprint:
       collapsed: false
       input:
         power_sensor:
-          name: Power Sensor
-          description: "Sensor reporting device power consumption (W)"
+          name: Power Sensor (optional)
+          description: >
+            Sensor reporting device power consumption (W).
+            Leave empty to disable power monitoring.
+          default:
           selector:
             entity:
               domain: sensor
@@ -321,13 +324,6 @@ trigger:
   - platform: state
     entity_id: !input env_sensors
 
-  # Power sensor dropped below threshold (potential malfunction)
-  - platform: numeric_state
-    entity_id: !input power_sensor
-    below: !input power_threshold
-    for:
-      seconds: !input power_decay_duration
-
 # =============================================================================
 # CONDITIONS
 # =============================================================================
@@ -406,13 +402,13 @@ action:
       # -----------------------------------------------------------------------
       # Power Monitoring
       # -----------------------------------------------------------------------
-      power_threshold: !input power_threshold
       power_sensor: !input power_sensor
+      power_threshold: !input power_threshold
       power_problematic_indicator_entity: !input power_problematic_indicator_entity
       power_decay_duration: !input power_decay_duration
-      power: "{{ states(power_sensor) | float(0) }}"
+      power: "{{ states(power_sensor) | float(0) if power_sensor is not none else 0 }}"
       # Device is problematic if it's consuming power but below threshold
-      is_power_not_ok: "{{ (power > 0 and power < power_threshold) if power_threshold != 0 else false }}"
+      is_power_not_ok: "{{ (power > 0 and power < power_threshold) if power_sensor is not none and power_threshold != 0 else false }}"
 
       # -----------------------------------------------------------------------
       # Window/Door State
@@ -503,7 +499,7 @@ action:
   - choose:
       - conditions:
           - condition: template
-            value_template: "{{ states(device_entity) not in ['off', 'unavailable', 'unknown'] and power_problematic_indicator_entity is not none }}"
+            value_template: "{{ power_sensor is not none and states(device_entity) not in ['off', 'unavailable', 'unknown'] and power_problematic_indicator_entity is not none }}"
         sequence:
           - variables:
               # Check if enough time has passed since last power reading