diff --git a/esphome/components/climate/climate_traits.h b/esphome/components/climate/climate_traits.h
index d31de34e24..65cae3a077 100644
--- a/esphome/components/climate/climate_traits.h
+++ b/esphome/components/climate/climate_traits.h
@@ -147,9 +147,14 @@ class ClimateTraits {
   void add_supported_fan_mode(ClimateFanMode mode) { this->supported_fan_modes_.insert(mode); }
   bool supports_fan_mode(ClimateFanMode fan_mode) const { return this->supported_fan_modes_.count(fan_mode); }
   bool get_supports_fan_modes() const {
-    return !this->supported_fan_modes_.empty() ||
-           (this->supported_custom_fan_modes_ && !this->supported_custom_fan_modes_->empty()) ||
-           !this->compat_custom_fan_modes_.empty();  // Compat: remove in 2026.11.0
+    if (!this->supported_fan_modes_.empty()) {
+      return true;
+    }
+    // Same precedence as get_supported_custom_fan_modes() getter
+    if (this->supported_custom_fan_modes_) {
+      return !this->supported_custom_fan_modes_->empty();
+    }
+    return !this->compat_custom_fan_modes_.empty();  // Compat: remove in 2026.11.0
   }
   const ClimateFanModeMask &get_supported_fan_modes() const { return this->supported_fan_modes_; }
 
diff --git a/esphome/components/midea/air_conditioner.cpp b/esphome/components/midea/air_conditioner.cpp
index 77bec5c7a2..2a9a5e9902 100644
--- a/esphome/components/midea/air_conditioner.cpp
+++ b/esphome/components/midea/air_conditioner.cpp
@@ -24,10 +24,22 @@ template<typename T> void update_property(T &property, const T &value, bool &fla
 }
 
 void AirConditioner::on_status_change() {
-  // Set frost protection custom preset once when autoconf completes
+  // Add frost protection custom preset once when autoconf completes (merge, don't overwrite)
   if (this->base_.getAutoconfStatus() == dudanov::midea::AUTOCONF_OK &&
       this->base_.getCapabilities().supportFrostProtectionPreset() && !this->frost_protection_set_) {
-    this->set_supported_custom_presets({Constants::FREEZE_PROTECTION});
+    auto presets = this->get_traits().get_supported_custom_presets();
+    bool found = false;
+    for (const char *p : presets) {
+      if (strcmp(p, Constants::FREEZE_PROTECTION) == 0) {
+        found = true;
+        break;
+      }
+    }
+    if (!found) {
+      std::vector<const char *> merged(presets.begin(), presets.end());
+      merged.push_back(Constants::FREEZE_PROTECTION);
+      this->set_supported_custom_presets(merged);
+    }
     this->frost_protection_set_ = true;
   }
   bool need_publish = false;