diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/rpc/led-indicator.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/rpc/led-indicator.component.ts
index 847987c215..efdf87bc6b 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/rpc/led-indicator.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/rpc/led-indicator.component.ts
@@ -320,7 +320,7 @@ export class LedIndicatorComponent extends PageComponent implements OnInit, OnDe
       const keyData = data[0];
       if (keyData && keyData.data && keyData.data[0]) {
         const attrValue = keyData.data[0][1];
-        if (attrValue) {
+        if (isDefined(attrValue)) {
           let parsed = null;
           try {
             parsed = this.parseValueFunction(JSON.parse(attrValue));
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/rpc/round-switch.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/rpc/round-switch.component.ts
index fe6b8cbeb6..a8ed46e529 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/rpc/round-switch.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/rpc/round-switch.component.ts
@@ -315,7 +315,7 @@ export class RoundSwitchComponent extends PageComponent implements OnInit, OnDes
       const keyData = data[0];
       if (keyData && keyData.data && keyData.data[0]) {
         const attrValue = keyData.data[0][1];
-        if (attrValue) {
+        if (isDefined(attrValue)) {
           let parsed = null;
           try {
             parsed = this.parseValueFunction(JSON.parse(attrValue));
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/rpc/switch.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/rpc/switch.component.ts
index 2fe2404b95..f4a84d0326 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/rpc/switch.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/rpc/switch.component.ts
@@ -333,7 +333,7 @@ export class SwitchComponent extends PageComponent implements OnInit, OnDestroy
       const keyData = data[0];
       if (keyData && keyData.data && keyData.data[0]) {
         const attrValue = keyData.data[0][1];
-        if (attrValue) {
+        if (isDefined(attrValue)) {
           let parsed = null;
           try {
             parsed = this.parseValueFunction(JSON.parse(attrValue));