diff --git a/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronAlarmHandler.java b/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronAlarmHandler.java
index 254904df7c7..828b30c5484 100644
--- a/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronAlarmHandler.java
+++ b/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronAlarmHandler.java
@@ -72,9 +72,13 @@ public abstract class JablotronAlarmHandler extends BaseThingHandler {
     @Override
     public void bridgeStatusChanged(ThingStatusInfo bridgeStatusInfo) {
         super.bridgeStatusChanged(bridgeStatusInfo);
-        if (ThingStatus.UNINITIALIZED == bridgeStatusInfo.getStatus()) {
+        if (ThingStatus.OFFLINE == bridgeStatusInfo.getStatus()
+                || ThingStatus.UNINITIALIZED == bridgeStatusInfo.getStatus()) {
             cleanup();
         }
+        if (ThingStatus.ONLINE == bridgeStatusInfo.getStatus()) {
+            initialize();
+        }
     }
 
     @Override
@@ -85,6 +89,7 @@ public abstract class JablotronAlarmHandler extends BaseThingHandler {
 
     @Override
     public void initialize() {
+        logger.debug("Initializing the alarm: {}", getThing().getUID());
         thingConfig = getConfigAs(JablotronDeviceConfig.class);
         future = scheduler.scheduleWithFixedDelay(this::updateAlarmStatus, 1, thingConfig.getRefresh(),
                 TimeUnit.SECONDS);
@@ -144,6 +149,7 @@ public abstract class JablotronAlarmHandler extends BaseThingHandler {
     }
 
     protected synchronized boolean updateAlarmStatus() {
+        logger.debug("Updating status of alarm: {}", getThing().getUID());
         JablotronDataUpdateResponse dataUpdate = sendGetStatusRequest();
         if (dataUpdate == null) {
             return false;
diff --git a/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronBridgeHandler.java b/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronBridgeHandler.java
index c0650efcf38..857678b8b91 100644
--- a/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronBridgeHandler.java
+++ b/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronBridgeHandler.java
@@ -90,9 +90,14 @@ public class JablotronBridgeHandler extends BaseBridgeHandler {
     }
 
     private void updateAlarmThings() {
+        logger.debug("Updating overall alarm's statuses...");
         @Nullable
         List<JablotronDiscoveredService> services = discoverServices();
         if (services != null) {
+            Bridge localBridge = getThing();
+            if (localBridge != null && ThingStatus.ONLINE != localBridge.getStatus()) {
+                updateStatus(ThingStatus.ONLINE);
+            }
             for (JablotronDiscoveredService service : services) {
                 updateAlarmThing(service);
             }
@@ -101,6 +106,11 @@ public class JablotronBridgeHandler extends BaseBridgeHandler {
 
     private void updateAlarmThing(JablotronDiscoveredService service) {
         for (Thing th : getThing().getThings()) {
+            if (ThingStatus.ONLINE != th.getStatus()) {
+                logger.debug("Thing {} is not online", th.getUID());
+                continue;
+            }
+
             JablotronAlarmHandler handler = (JablotronAlarmHandler) th.getHandler();
 
             if (handler == null) {
@@ -150,12 +160,13 @@ public class JablotronBridgeHandler extends BaseBridgeHandler {
 
     private @Nullable <T> T sendMessage(String url, String urlParameters, Class<T> classOfT, String encoding,
             boolean relogin) {
+        String line = "";
         try {
             ContentResponse resp = createRequest(url).content(new StringContentProvider(urlParameters), encoding)
                     .send();
 
             logger.trace("Request: {} with data: {}", url, urlParameters);
-            String line = resp.getContentAsString();
+            line = resp.getContentAsString();
             logger.trace("Response: {}", line);
             return gson.fromJson(line, classOfT);
         } catch (TimeoutException e) {
@@ -166,6 +177,7 @@ public class JablotronBridgeHandler extends BaseBridgeHandler {
                     "Interrupt during calling url: " + url);
             Thread.currentThread().interrupt();
         } catch (JsonSyntaxException e) {
+            logger.debug("Invalid JSON received: {}", line);
             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
                     "Syntax error during calling url: " + url);
         } catch (ExecutionException e) {
diff --git a/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronJa100Handler.java b/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronJa100Handler.java
index 75baefa64f0..d295673fbf9 100644
--- a/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronJa100Handler.java
+++ b/bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronJa100Handler.java
@@ -160,7 +160,7 @@ public class JablotronJa100Handler extends JablotronAlarmHandler {
         if (channel != null) {
             logger.debug("Updating channel: {} to value: {}", channel.getUID(), segment.getSegmentState());
             State newState;
-            if (segmentId.startsWith("PGM_")) {
+            if (segmentId.startsWith("pgm_")) {
                 newState = "unset".equals(segment.getSegmentState()) ? OnOffType.OFF : OnOffType.ON;
             } else {
                 newState = new StringType(segment.getSegmentState());