diff --git a/js/src/api/transport/error.js b/js/src/api/transport/error.js
index 5fe9aac06a7..512d4289e7a 100644
--- a/js/src/api/transport/error.js
+++ b/js/src/api/transport/error.js
@@ -25,6 +25,7 @@ export const ERROR_CODES = {
   UNKNOWN_ERROR: -32009,
   TRANSACTION_ERROR: -32010,
   EXECUTION_ERROR: -32015,
+  EXCEPTION_ERROR: -32016,
   ACCOUNT_LOCKED: -32020,
   PASSWORD_INVALID: -32021,
   ACCOUNT_ERROR: -32023,
diff --git a/js/src/modals/DeployContract/deployContract.js b/js/src/modals/DeployContract/deployContract.js
index 1bda0dddf77..701c689ad6d 100644
--- a/js/src/modals/DeployContract/deployContract.js
+++ b/js/src/modals/DeployContract/deployContract.js
@@ -391,6 +391,10 @@ class DeployContract extends Component {
       .then(([gasEst, gas]) => {
         this.gasStore.setEstimated(gasEst.toFixed(0));
         this.gasStore.setGas(gas.toFixed(0));
+      })
+      .catch((error) => {
+        this.gasStore.setEstimatedError();
+        console.warn('estimateGas', error);
       });
   }
 
diff --git a/js/src/modals/ExecuteContract/executeContract.js b/js/src/modals/ExecuteContract/executeContract.js
index 569356cf9c0..689678a7c74 100644
--- a/js/src/modals/ExecuteContract/executeContract.js
+++ b/js/src/modals/ExecuteContract/executeContract.js
@@ -155,8 +155,7 @@ class ExecuteContract extends Component {
     }
 
     return (
-      <Warning
-        warning={ errorEstimated } />
+      <Warning warning={ errorEstimated } />
     );
   }
 
@@ -378,6 +377,7 @@ class ExecuteContract extends Component {
         this.gasStore.setGas(gas.toFixed(0));
       })
       .catch((error) => {
+        this.gasStore.setEstimatedError();
         console.warn('estimateGas', error);
       });
   }
diff --git a/js/src/modals/Transfer/store.js b/js/src/modals/Transfer/store.js
index 3a01b94aeb6..9da9023f1a3 100644
--- a/js/src/modals/Transfer/store.js
+++ b/js/src/modals/Transfer/store.js
@@ -357,6 +357,7 @@ export default class TransferStore {
         });
       })
       .catch((error) => {
+        this.gasStore.setEstimatedError();
         console.warn('etimateGas', error);
         this.recalculate(redo);
       });
diff --git a/js/src/ui/GasPriceEditor/store.js b/js/src/ui/GasPriceEditor/store.js
index 22867fdd098..bb83738546c 100644
--- a/js/src/ui/GasPriceEditor/store.js
+++ b/js/src/ui/GasPriceEditor/store.js
@@ -62,6 +62,10 @@ export default class GasPriceEditor {
     this.errorTotal = errorTotal;
   }
 
+  @action setEstimatedError = (errorEstimated = ERRORS.gasException) => {
+    this.errorEstimated = errorEstimated;
+  }
+
   @action setEstimated = (estimated) => {
     transaction(() => {
       const bn = new BigNumber(estimated);
@@ -69,11 +73,11 @@ export default class GasPriceEditor {
       this.estimated = estimated;
 
       if (bn.gte(MAX_GAS_ESTIMATION)) {
-        this.errorEstimated = ERRORS.gasException;
+        this.setEstimatedError(ERRORS.gasException);
       } else if (bn.gte(this.gasLimit)) {
-        this.errorEstimated = ERRORS.gasBlockLimit;
+        this.setEstimatedError(ERRORS.gasBlockLimit);
       } else {
-        this.errorEstimated = null;
+        this.setEstimatedError(null);
       }
     });
   }
diff --git a/js/src/ui/GasPriceEditor/store.spec.js b/js/src/ui/GasPriceEditor/store.spec.js
index 889eee4db30..3dcf2e22c2a 100644
--- a/js/src/ui/GasPriceEditor/store.spec.js
+++ b/js/src/ui/GasPriceEditor/store.spec.js
@@ -82,6 +82,24 @@ describe('ui/GasPriceEditor/store', () => {
       });
     });
 
+    describe('setEstimatedError', () => {
+      it('sets the value as provided', () => {
+        store.setEstimatedError('errorTest');
+        expect(store.errorEstimated).to.equal('errorTest');
+      });
+
+      it('sets the null value as provided', () => {
+        store.setEstimatedError('errorTest');
+        store.setEstimatedError(null);
+        expect(store.errorEstimated).to.be.null;
+      });
+
+      it('sets a default error when none provided', () => {
+        store.setEstimatedError();
+        expect(store.errorEstimated).to.equal(ERRORS.gasException);
+      });
+    });
+
     describe('setEstimated', () => {
       it('sets the value', () => {
         store.setEstimated('789');