diff --git a/diagnostic_aggregator/include/diagnostic_aggregator/generic_analyzer_base.hpp b/diagnostic_aggregator/include/diagnostic_aggregator/generic_analyzer_base.hpp
index d7cb8a48..5b8b8c1b 100644
--- a/diagnostic_aggregator/include/diagnostic_aggregator/generic_analyzer_base.hpp
+++ b/diagnostic_aggregator/include/diagnostic_aggregator/generic_analyzer_base.hpp
@@ -119,7 +119,7 @@ class GenericAnalyzerBase : public Analyzer
 
     has_initialized_ = true;
 
-    RCLCPP_INFO(
+    RCLCPP_DEBUG(
       rclcpp::get_logger("GenericAnalyzerBase"),
       "Initialized analyzer '%s' with path '%s' and breadcrumb '%s'.", nice_name_.c_str(),
       path_.c_str(), breadcrumb_.c_str());
diff --git a/diagnostic_aggregator/src/analyzer_group.cpp b/diagnostic_aggregator/src/analyzer_group.cpp
index d54a70d3..b1d0425a 100644
--- a/diagnostic_aggregator/src/analyzer_group.cpp
+++ b/diagnostic_aggregator/src/analyzer_group.cpp
@@ -74,7 +74,7 @@ bool AnalyzerGroup::init(
       breadcrumb_.c_str(), n->get_namespace());
     return false;
   }
-  RCLCPP_INFO(
+  RCLCPP_DEBUG(
     logger_, "Retrieved %zu parameter(s) for analyzer group with prefix '%s'.", parameters.size(),
     breadcrumb_.c_str());
 
@@ -112,7 +112,7 @@ bool AnalyzerGroup::init(
     }
 
     if (!ns.empty() && !an_type.empty() && !an_path.empty()) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         logger_, "Group '%s', creating %s '%s' (breadcrumb: %s) ...", nice_name_.c_str(),
         an_type.c_str(), an_path.c_str(), ns.c_str());
 
@@ -175,7 +175,7 @@ bool AnalyzerGroup::init(
     init_ok = false;
     RCLCPP_ERROR(logger_, "No analyzers initialized in AnalyzerGroup '%s'", n->get_namespace());
   } else {
-    RCLCPP_INFO(
+    RCLCPP_DEBUG(
       logger_, "Initialized analyzer group '%s' with path '%s' and breadcrumb '%s'.",
       nice_name_.c_str(), path_.c_str(), breadcrumb_.c_str());
   }
@@ -191,7 +191,7 @@ AnalyzerGroup::~AnalyzerGroup()
 
 bool AnalyzerGroup::addAnalyzer(std::shared_ptr<Analyzer> & analyzer)
 {
-  RCLCPP_INFO(
+  RCLCPP_DEBUG(
     logger_, "Adding analyzer '%s' to group '%s'.", analyzer->getName().c_str(),
     nice_name_.c_str());
   analyzers_.push_back(analyzer);
@@ -238,7 +238,7 @@ bool AnalyzerGroup::match(const std::string & name)
     match_name = mtch || match_name;
     matched_[name].at(i) = mtch;
     if (mtch) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         logger_, "Group '%s' has a match with my analyzer '%s'.", nice_name_.c_str(),
         analyzers_[i]->getName().c_str());
     }
diff --git a/diagnostic_aggregator/src/generic_analyzer.cpp b/diagnostic_aggregator/src/generic_analyzer.cpp
index 6fa8efdd..3965b226 100644
--- a/diagnostic_aggregator/src/generic_analyzer.cpp
+++ b/diagnostic_aggregator/src/generic_analyzer.cpp
@@ -192,7 +192,7 @@ bool GenericAnalyzer::match(const string & name)
   std::cmatch what;
   for (unsigned int i = 0; i < regex_.size(); ++i) {
     if (std::regex_match(name.c_str(), what, regex_[i])) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         rclcpp::get_logger("GenericAnalyzer"), "Analyzer '%s' matches '%s' with regex.",
         nice_name_.c_str(), name.c_str());
       return true;
@@ -201,7 +201,7 @@ bool GenericAnalyzer::match(const string & name)
 
   for (unsigned int i = 0; i < expected_.size(); ++i) {
     if (name == expected_[i]) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         rclcpp::get_logger("GenericAnalyzer"), "Analyzer '%s' matches '%s'.", nice_name_.c_str(),
         name.c_str());
       return true;
@@ -210,7 +210,7 @@ bool GenericAnalyzer::match(const string & name)
 
   for (unsigned int i = 0; i < name_.size(); ++i) {
     if (name == name_[i]) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         rclcpp::get_logger("GenericAnalyzer"), "Analyzer '%s' matches '%s'.", nice_name_.c_str(),
         name.c_str());
       return true;
@@ -219,7 +219,7 @@ bool GenericAnalyzer::match(const string & name)
 
   for (unsigned int i = 0; i < startswith_.size(); ++i) {
     if (name.find(startswith_[i]) == 0) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         rclcpp::get_logger("GenericAnalyzer"), "Analyzer '%s' matches '%s'.", nice_name_.c_str(),
         name.c_str());
       return true;
@@ -228,7 +228,7 @@ bool GenericAnalyzer::match(const string & name)
 
   for (unsigned int i = 0; i < contains_.size(); ++i) {
     if (name.find(contains_[i]) != string::npos) {
-      RCLCPP_INFO(
+      RCLCPP_DEBUG(
         rclcpp::get_logger("GenericAnalyzer"), "Analyzer '%s' matches '%s'.", nice_name_.c_str(),
         name.c_str());
       return true;
diff --git a/diagnostic_aggregator/test/add_analyzers.launch.py.in b/diagnostic_aggregator/test/add_analyzers.launch.py.in
index 8e4eae8d..ff014715 100644
--- a/diagnostic_aggregator/test/add_analyzers.launch.py.in
+++ b/diagnostic_aggregator/test/add_analyzers.launch.py.in
@@ -23,7 +23,9 @@ def generate_test_description():
             "@AGGREGATOR_NODE@",
             "--ros-args",
             "--params-file",
-            "@PARAMETER_FILE@"
+            "@PARAMETER_FILE@",
+            "--log-level",
+            "DEBUG"
             ],
         name='aggregator_node',
         emulate_tty=True,
@@ -34,7 +36,9 @@ def generate_test_description():
             "@ADD_ANALYZER@",
             "--ros-args",
             "--params-file",
-            "@ADD_PARAMETER_FILE@"
+            "@ADD_PARAMETER_FILE@",
+            "--log-level",
+            "DEBUG"
             ],
         name='add_analyzer',
         emulate_tty=True,
diff --git a/diagnostic_aggregator/test/create_analyzers.launch.py.in b/diagnostic_aggregator/test/create_analyzers.launch.py.in
index b998aadd..7d36c1e6 100644
--- a/diagnostic_aggregator/test/create_analyzers.launch.py.in
+++ b/diagnostic_aggregator/test/create_analyzers.launch.py.in
@@ -23,7 +23,9 @@ def generate_test_description():
             "@AGGREGATOR_NODE@",
             "--ros-args",
             "--params-file",
-            "@PARAMETER_FILE@"
+            "@PARAMETER_FILE@",
+            "--log-level",
+            "DEBUG"
             ],
         name='aggregator_node',
         emulate_tty=True,