diff --git a/src/lib/seam/connect/models/action-attempts/action-attempt.ts b/src/lib/seam/connect/models/action-attempts/action-attempt.ts
index bbc39556..2a3aacb6 100644
--- a/src/lib/seam/connect/models/action-attempts/action-attempt.ts
+++ b/src/lib/seam/connect/models/action-attempts/action-attempt.ts
@@ -10,6 +10,7 @@ import { set_cool_action_attempt } from './set-cool.js'
 import { set_fan_mode_action_attempt } from './set-fan-mode.js'
 import { set_heat_action_attempt } from './set-heat.js'
 import { set_heat_cool_action_attempt } from './set-heat-cool.js'
+import { set_hvac_mode_action_attempt } from './set-hvac-mode.js'
 import { set_thermostat_off_action_attempt } from './set-thermostat-off.js'
 import { unlock_door_action_attempt } from './unlock-door.js'
 
@@ -24,6 +25,7 @@ export const action_attempt = z.union([
   ...set_heat_cool_action_attempt.options,
   ...set_fan_mode_action_attempt.options,
   ...set_thermostat_off_action_attempt.options,
+  ...set_hvac_mode_action_attempt.options,
   ...activate_climate_preset_action_attempt.options,
   ...deprecated_action_attempts,
 ])
diff --git a/src/lib/seam/connect/models/action-attempts/set-hvac-mode.ts b/src/lib/seam/connect/models/action-attempts/set-hvac-mode.ts
new file mode 100644
index 00000000..d4241d61
--- /dev/null
+++ b/src/lib/seam/connect/models/action-attempts/set-hvac-mode.ts
@@ -0,0 +1,33 @@
+import { z } from 'zod'
+
+import {
+  common_failed_action_attempt,
+  common_pending_action_attempt,
+  common_succeeded_action_attempt,
+} from './common.js'
+
+const action_type = z.literal('SET_HVAC_MODE')
+
+const error = z.object({
+  type: z.string(),
+  message: z.string(),
+})
+
+const result = z.object({})
+
+export const set_hvac_mode_action_attempt = z.discriminatedUnion('status', [
+  common_pending_action_attempt
+    .extend({
+      action_type,
+    })
+    .describe('Setting HVAC mode.'),
+  common_succeeded_action_attempt
+    .extend({
+      action_type,
+      result,
+    })
+    .describe('Setting HVAC mode succeeded.'),
+  common_failed_action_attempt
+    .extend({ action_type, error })
+    .describe('Setting HVAC mode failed.'),
+])
diff --git a/src/lib/seam/connect/openapi.ts b/src/lib/seam/connect/openapi.ts
index 2bba651e..8819afd2 100644
--- a/src/lib/seam/connect/openapi.ts
+++ b/src/lib/seam/connect/openapi.ts
@@ -3488,6 +3488,82 @@ export default {
             ],
             type: 'object',
           },
+          {
+            description: 'Setting HVAC mode.',
+            properties: {
+              action_attempt_id: {
+                description: 'The ID of the action attempt.',
+                format: 'uuid',
+                type: 'string',
+                'x-title': 'Action Attempt ID',
+              },
+              action_type: { enum: ['SET_HVAC_MODE'], type: 'string' },
+              error: { nullable: true },
+              result: { nullable: true },
+              status: { enum: ['pending'], type: 'string' },
+            },
+            required: [
+              'action_attempt_id',
+              'status',
+              'result',
+              'error',
+              'action_type',
+            ],
+            type: 'object',
+          },
+          {
+            description: 'Setting HVAC mode succeeded.',
+            properties: {
+              action_attempt_id: {
+                description: 'The ID of the action attempt.',
+                format: 'uuid',
+                type: 'string',
+                'x-title': 'Action Attempt ID',
+              },
+              action_type: { enum: ['SET_HVAC_MODE'], type: 'string' },
+              error: { nullable: true },
+              result: { properties: {}, type: 'object' },
+              status: { enum: ['success'], type: 'string' },
+            },
+            required: [
+              'action_attempt_id',
+              'status',
+              'error',
+              'action_type',
+              'result',
+            ],
+            type: 'object',
+          },
+          {
+            description: 'Setting HVAC mode failed.',
+            properties: {
+              action_attempt_id: {
+                description: 'The ID of the action attempt.',
+                format: 'uuid',
+                type: 'string',
+                'x-title': 'Action Attempt ID',
+              },
+              action_type: { enum: ['SET_HVAC_MODE'], type: 'string' },
+              error: {
+                properties: {
+                  message: { type: 'string' },
+                  type: { type: 'string' },
+                },
+                required: ['type', 'message'],
+                type: 'object',
+              },
+              result: { nullable: true },
+              status: { enum: ['error'], type: 'string' },
+            },
+            required: [
+              'action_attempt_id',
+              'status',
+              'result',
+              'action_type',
+              'error',
+            ],
+            type: 'object',
+          },
           {
             description: 'Activating climate preset.',
             properties: {
diff --git a/src/lib/seam/connect/route-types.ts b/src/lib/seam/connect/route-types.ts
index 9c5d6fdc..d1d7babe 100644
--- a/src/lib/seam/connect/route-types.ts
+++ b/src/lib/seam/connect/route-types.ts
@@ -783,6 +783,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -1936,6 +1963,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -3319,6 +3373,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -4459,6 +4540,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -7170,6 +7278,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -8212,6 +8347,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -10798,6 +10960,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -11792,6 +11981,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -18721,6 +18937,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -19716,6 +19959,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -22321,6 +22591,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -23326,6 +23623,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -24370,6 +24694,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -25573,6 +25924,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -26574,6 +26952,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -28328,6 +28733,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -29333,6 +29765,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -31901,6 +32360,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -33071,6 +33557,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -34099,6 +34612,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string
@@ -37245,6 +37785,33 @@ export interface Routes {
               message: string
             }
           }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'pending'
+            result: null
+            error: null
+            action_type: 'SET_HVAC_MODE'
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'success'
+            error: null
+            action_type: 'SET_HVAC_MODE'
+            result: {}
+          }
+        | {
+            /** The ID of the action attempt. */
+            action_attempt_id: string
+            status: 'error'
+            result: null
+            action_type: 'SET_HVAC_MODE'
+            error: {
+              type: string
+              message: string
+            }
+          }
         | {
             /** The ID of the action attempt. */
             action_attempt_id: string