diff --git contrib/search_api_facets/search_api_facets.module contrib/search_api_facets/search_api_facets.module
index ddb0ea2..6db9ad3 100644
--- contrib/search_api_facets/search_api_facets.module
+++ contrib/search_api_facets/search_api_facets.module
@@ -293,6 +293,7 @@ function search_api_facets_block_save($delta = '', array $edit = array()) {
  * Implements hook_block_view().
  */
 function search_api_facets_block_view($delta = '') {
+  drupal_set_message("search_api_facets_block_view($delta) called.");
   if (!user_access('use search_api_facets')) {
     return;
   }
@@ -654,9 +655,12 @@ function search_api_facets_current_search_options() {
  * Implements hook_search_api_query_alter().
  */
 function search_api_facets_search_api_query_alter(SearchApiQueryInterface $query) {
+  drupal_set_message(__FUNCTION__ . '() called.');
   if (!user_access('use search_api_facets')) {
+    drupal_set_message('Access forbidden!');
     return;
   }
+  drupal_set_message('Access allowed.');
   // Add facet fields to query.
   $index_id = $query->getIndex()->machine_name;
   $facets = search_api_facet_load_multiple(FALSE, array('index_id' => $index_id, 'enabled' => TRUE));
@@ -665,6 +669,7 @@ function search_api_facets_search_api_query_alter(SearchApiQueryInterface $query
   $active = &drupal_static(__FUNCTION__, array());
   $search_id = $query->getOption('search id');
   foreach ($facets as $facet) {
+    drupal_set_message("Looking at facet {$facet->delta} ...");
     if (array_search($search_id, $facet->options['ids_list']) === FALSE) {
       $search_ids = variable_get('search_api_facets_search_ids', array());
       if (empty($search_ids[$index_id][$search_id])) {
@@ -673,13 +678,16 @@ function search_api_facets_search_api_query_alter(SearchApiQueryInterface $query
         variable_set('search_api_facets_search_ids', $search_ids);
       }
       if (!$facet->options['default_true']) {
+        drupal_set_message('-> Facet not enabled.');
         continue; // Facet doesn't match.
       }
     }
     elseif ($facet->options['default_true']) {
+        drupal_set_message('-> Facet disabled.');
       continue; // Facet doesn't match.
     }
     $active[$facet->delta] = $search_id;
+    drupal_set_message('-> Added to $active.');
     $fields[$facet->delta] = array(
       'field'     => $facet->field,
       'limit'     => $facet->options['display_more_link'] ? $facet->options['more_limit'] : $facet->options['limit'],