diff --git a/src/specificClass.js b/src/specificClass.js
index fa4ecdc..b537b20 100644
--- a/src/specificClass.js
+++ b/src/specificClass.js
@@ -21,7 +21,13 @@ class liquidFlowHandler {
   }
 
   updatePumpFlow() {
-    this.flow = this.pump.measurements.type("flow").variant("measured").position("downstream").getCurrentValue() || 0;
+    const measuredFlow = this.pump.measurements.type("flow").variant("measured").position("downstream").getCurrentValue();
+    if (!measuredFlow) {
+      this.logger.warn(`Invalid flow value provided: ${measuredFlow}`);
+      this.flow = 0;
+      return;
+    }
+    this.flow = measuredFlow;
   }
 
   getOutput() {