diff --git a/x-pack/legacy/plugins/monitoring/public/components/no_data/checker_errors.js b/x-pack/legacy/plugins/monitoring/public/components/no_data/checker_errors.js
index f56f7bd099c5d..d6f57d6f7479a 100644
--- a/x-pack/legacy/plugins/monitoring/public/components/no_data/checker_errors.js
+++ b/x-pack/legacy/plugins/monitoring/public/components/no_data/checker_errors.js
@@ -16,17 +16,27 @@ import {
 import { FormattedMessage } from '@kbn/i18n/react';
 
 const ErrorList = ({ errors }) => {
-  return errors.map((error, errorIndex) => {
-    const { message, statusCode, error: friendlyName } = error;
-    return (
-      <Fragment key={`checker-error-${errorIndex}`}>
-        <EuiDescriptionListTitle>
-          {statusCode} {friendlyName}
-        </EuiDescriptionListTitle>
-        <EuiDescriptionListDescription>{message}</EuiDescriptionListDescription>
-      </Fragment>
-    );
-  });
+  const errorsMap = {};
+  return errors
+    .filter(err => {
+      const { statusCode, error, message } = err;
+      const key = `${statusCode}${error}${message}`;
+      if (!errorsMap[key]) {
+        errorsMap[key] = true;
+        return true;
+      }
+    })
+    .map((error, errorIndex) => {
+      const { message, statusCode, error: friendlyName } = error;
+      return (
+        <Fragment key={`checker-error-${errorIndex}`}>
+          <EuiDescriptionListTitle>
+            {statusCode} {friendlyName}
+          </EuiDescriptionListTitle>
+          <EuiDescriptionListDescription>{message}</EuiDescriptionListDescription>
+        </Fragment>
+      );
+    });
 };
 
 export function CheckerErrors(props) {
diff --git a/x-pack/legacy/plugins/monitoring/public/views/no_data/controller.js b/x-pack/legacy/plugins/monitoring/public/views/no_data/controller.js
index eefb8bc393091..a914aa0155e90 100644
--- a/x-pack/legacy/plugins/monitoring/public/views/no_data/controller.js
+++ b/x-pack/legacy/plugins/monitoring/public/views/no_data/controller.js
@@ -45,6 +45,7 @@ export class NoDataController extends MonitoringViewBaseController {
         }
       }
 
+      this.errors.length = 0;
       if (catchReason) {
         this.reason = catchReason;
       } else if (!this.isCollectionEnabledUpdating && !this.isCollectionIntervalUpdating) {