diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 675c540..f8a8d7e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,7 @@
 name: CI
 
 on:
-  push:
+  push: #
     branches: [main]
   pull_request:
     branches: [main]
@@ -28,7 +28,7 @@ jobs:
       - name: Run Tests with Vitest
         run: npm run test
 
-      - name: Run ESLint
+      - name: Run ESLint #
         run: npm run lint
 
       # FOR IT TO WORK WITH GITHUB Actions and push to Docker registry do the following
diff --git a/src/temperature.ts b/src/temperature.ts
index 3fdc768..3076581 100644
--- a/src/temperature.ts
+++ b/src/temperature.ts
@@ -1,3 +1,7 @@
 export function isOverheating(temp: number): boolean {
   return temp > 70;
 }
+
+export function isUnderheating(temp: number): boolean {
+  return temp < 0;
+}
diff --git a/src/test/temperature.test.ts b/src/test/temperature.test.ts
index 3f58906..22eeefa 100644
--- a/src/test/temperature.test.ts
+++ b/src/test/temperature.test.ts
@@ -1,5 +1,5 @@
 import { describe, it, expect } from "vitest";
-import { isOverheating } from "../temperature";
+import { isOverheating, isUnderheating } from "../temperature";
 
 describe("isOverheating", () => {
   it("returns true if temp is above 70", () => {
@@ -10,3 +10,13 @@ describe("isOverheating", () => {
     expect(isOverheating(70)).toBe(false);
   });
 });
+
+describe("isUnderheating", () => {
+  it("returns true if temp is below 0", () => {
+    expect(isUnderheating(-5)).toBe(true);
+  });
+
+  it("returns false if temp is 0 or above", () => {
+    expect(isUnderheating(0)).toBe(false);
+  });
+});