From 410afd196f05c85050c21f751e19e5598f51bd15 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Fri, 31 Oct 2025 11:13:57 -0500
Subject: [PATCH] preen

---
 esphome/components/fan/fan_traits.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/esphome/components/fan/fan_traits.h b/esphome/components/fan/fan_traits.h
index bfb17a05ab..df345f9b04 100644
--- a/esphome/components/fan/fan_traits.h
+++ b/esphome/components/fan/fan_traits.h
@@ -37,6 +37,11 @@ class FanTraits {
   }
   /// Set the preset modes supported by the fan (from vector).
   void set_supported_preset_modes(const std::vector<const char *> &preset_modes) { this->preset_modes_ = preset_modes; }
+
+  // Deleted overloads to catch incorrect std::string usage at compile time with clear error messages
+  void set_supported_preset_modes(const std::vector<std::string> &preset_modes) = delete;
+  void set_supported_preset_modes(std::initializer_list<std::string> preset_modes) = delete;
+
   /// Return if preset modes are supported
   bool supports_preset_modes() const { return !this->preset_modes_.empty(); }