diff --git a/esphome/components/tmp102/tmp102.cpp b/esphome/components/tmp102/tmp102.cpp
index c5cef28a31..1b526ed25f 100644
--- a/esphome/components/tmp102/tmp102.cpp
+++ b/esphome/components/tmp102/tmp102.cpp
@@ -15,13 +15,11 @@ static const uint8_t TMP102_REGISTER_HIGH_LIMIT = 0x03;
 
 static const float TMP102_CONVERSION_FACTOR = 0.0625;
 
-void TMP102Component::setup() { ESP_LOGCONFIG(TAG, "Running setup"); }
-
 void TMP102Component::dump_config() {
   ESP_LOGCONFIG(TAG, "TMP102:");
   LOG_I2C_DEVICE(this);
   if (this->is_failed()) {
-    ESP_LOGE(TAG, "Communication with TMP102 failed!");
+    ESP_LOGE(TAG, "Communication failed");
   }
   LOG_UPDATE_INTERVAL(this);
   LOG_SENSOR("  ", "Temperature", this);
diff --git a/esphome/components/tmp102/tmp102.h b/esphome/components/tmp102/tmp102.h
index 1bbb2d5ae3..657b48c7cf 100644
--- a/esphome/components/tmp102/tmp102.h
+++ b/esphome/components/tmp102/tmp102.h
@@ -9,10 +9,7 @@ namespace tmp102 {
 
 class TMP102Component : public PollingComponent, public i2c::I2CDevice, public sensor::Sensor {
  public:
-  /// Setup (reset) the sensor and check connection.
-  void setup() override;
   void dump_config() override;
-  /// Update the sensor values (temperature)
   void update() override;
 
   float get_setup_priority() const override;