From 1c9a9c75369c4b2772b3c0e08604fec9875b3e0c Mon Sep 17 00:00:00 2001
From: sebcaps <sebastien.carecolin@gmail.com>
Date: Mon, 26 Jan 2026 07:07:29 +0100
Subject: [PATCH] [mhz19] Fix Uninitialized var warning message (#13526)

---
 esphome/components/mhz19/mhz19.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/esphome/components/mhz19/mhz19.cpp b/esphome/components/mhz19/mhz19.cpp
index 00e6e14d85..259d597b44 100644
--- a/esphome/components/mhz19/mhz19.cpp
+++ b/esphome/components/mhz19/mhz19.cpp
@@ -155,6 +155,9 @@ void MHZ19Component::dump_config() {
     case MHZ19_DETECTION_RANGE_0_10000PPM:
       range_str = "0 to 10000ppm";
       break;
+    default:
+      range_str = "default";
+      break;
   }
   ESP_LOGCONFIG(TAG, "  Detection range: %s", range_str);
 }