diff --git a/components/lib/inputnumber/InputNumber.js b/components/lib/inputnumber/InputNumber.js
index 175bedb35a..d59f22acc4 100644
--- a/components/lib/inputnumber/InputNumber.js
+++ b/components/lib/inputnumber/InputNumber.js
@@ -1,7 +1,7 @@
 import * as React from 'react';
 import PrimeReact, { PrimeReactContext } from '../api/Api';
 import { useHandleStyle } from '../componentbase/ComponentBase';
-import { useMergeProps, useMountEffect, useUpdateEffect } from '../hooks/Hooks';
+import { useMergeProps, useMountEffect, useUnmountEffect, useUpdateEffect } from '../hooks/Hooks';
 import { AngleDownIcon } from '../icons/angledown';
 import { AngleUpIcon } from '../icons/angleup';
 import { InputText } from '../inputtext/InputText';
@@ -1135,6 +1135,10 @@ export const InputNumber = React.memo(
             ObjectUtils.combinedRefs(inputRef, props.inputRef);
         }, [inputRef, props.inputRef]);
 
+        useUnmountEffect(() => {
+            clearTimer();
+        });
+
         useMountEffect(() => {
             constructParser();