diff --git a/bundles/org.openhab.binding.melcloud/README.md b/bundles/org.openhab.binding.melcloud/README.md
index 619e4da6921..6d63ed67367 100644
--- a/bundles/org.openhab.binding.melcloud/README.md
+++ b/bundles/org.openhab.binding.melcloud/README.md
@@ -72,7 +72,7 @@ A.C. device and Heatpump device configuration:
 |-----------------|-----------|---------------------------------------------------------------------------------------|
 | deviceID        | x         | MELCloud device ID.                                                                   |
 | buildingID      |           | MELCloud building ID. If not defined, binding tries to find matching id by device ID. |
-| pollingInterval |           | Refresh time interval in seconds for updates from MELCloud.  Defaults to 60 seconds.  |
+| pollingInterval |           | Refresh time interval in seconds for updates from MELCloud. Minimum is 180, defaults to 360 seconds. Mitsubishi Electric introduced limits on their API so changing default value may cause excessive traffic and lock you out for several hours. |
 
 ## Channels
 
@@ -112,8 +112,8 @@ Heatpump device channels
 
 ```java
 Bridge melcloud:melcloudaccount:myaccount "My MELCloud account" [ username="user.name@example.com", password="xxxxxx", language="0" ] {
- Thing acdevice livingroom "Livingroom A.C. device" [ deviceID=123456, pollingInterval=60 ]
- Thing heatpumpdevice attic "Attic Heatpump device" [ deviceID=789012, pollingInterval=60 ]
+ Thing acdevice livingroom "Livingroom A.C. device" [ deviceID=123456, pollingInterval=360 ]
+ Thing heatpumpdevice attic "Attic Heatpump device" [ deviceID=789012, pollingInterval=360 ]
 }
 ```
 
diff --git a/bundles/org.openhab.binding.melcloud/src/main/java/org/openhab/binding/melcloud/internal/handler/MelCloudAccountHandler.java b/bundles/org.openhab.binding.melcloud/src/main/java/org/openhab/binding/melcloud/internal/handler/MelCloudAccountHandler.java
index f47adcd3ec9..1414b2322e3 100644
--- a/bundles/org.openhab.binding.melcloud/src/main/java/org/openhab/binding/melcloud/internal/handler/MelCloudAccountHandler.java
+++ b/bundles/org.openhab.binding.melcloud/src/main/java/org/openhab/binding/melcloud/internal/handler/MelCloudAccountHandler.java
@@ -207,7 +207,7 @@ public class MelCloudAccountHandler extends BaseBridgeHandler {
                     }
                 }
             };
-            connectionCheckTask = scheduler.scheduleWithFixedDelay(runnable, 0, 60, TimeUnit.SECONDS);
+            connectionCheckTask = scheduler.scheduleWithFixedDelay(runnable, 0, 300, TimeUnit.SECONDS);
         } else {
             logger.debug("Connection check task already running");
         }
diff --git a/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/acDevice.xml b/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/acDevice.xml
index 5779708c504..6be55d29b93 100644
--- a/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/acDevice.xml
+++ b/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/acDevice.xml
@@ -36,10 +36,10 @@
 				<label>Building ID</label>
 				<description>Building ID of the A.C. device.</description>
 			</parameter>
-			<parameter name="pollingInterval" type="integer" required="true">
+			<parameter name="pollingInterval" type="integer" min="180" required="true">
 				<label>Polling Interval</label>
 				<description>Time interval how often poll data from MELCloud</description>
-				<default>60</default>
+				<default>360</default>
 			</parameter>
 		</config-description>
 	</thing-type>
diff --git a/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/heatpumpDevice.xml b/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/heatpumpDevice.xml
index 3b58cec5d94..ecee57d4bd5 100644
--- a/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/heatpumpDevice.xml
+++ b/bundles/org.openhab.binding.melcloud/src/main/resources/OH-INF/thing/heatpumpDevice.xml
@@ -34,10 +34,10 @@
 				<label>Building ID</label>
 				<description>Building ID of the Heatpump device.</description>
 			</parameter>
-			<parameter name="pollingInterval" type="integer" required="true">
+			<parameter name="pollingInterval" type="integer" min="180" required="true">
 				<label>Polling Interval</label>
 				<description>Time interval how often poll data from MELCloud</description>
-				<default>60</default>
+				<default>360</default>
 			</parameter>
 		</config-description>
 	</thing-type>