diff --git a/e2e/predam-log.e2e-spec.ts b/e2e/predam-log.e2e-spec.ts
index 8327fb0ffecec4baa5ac193066772c55bf9a0cb2..0e7e99fe922d45e8a9af8916e0552fe43febf9f6 100644
--- a/e2e/predam-log.e2e-spec.ts
+++ b/e2e/predam-log.e2e-spec.ts
@@ -95,4 +95,37 @@ describe("predams - ", () => {
         // check log messages absence
         expect(await calcPage.hasLog()).toBe(false);
     });
+
+    it("check submergence error and results if dichotomy did not converge", async () => {
+        await startPage.navigateTo();
+        await browser.pause(200);
+
+        // open predams example
+        const examples = await $$("#examples-list .load-example");
+        await examples[6].click();
+        await browser.pause(500);
+
+        // modify iteration count,precision
+        await prefPage.navigateTo();
+        await browser.pause(200);
+        await prefPage.setIterationCount(10);
+        await prefPage.setComputePrecision(1e-15);
+
+        // back to module
+        await navBar.openNthCalculator(0);
+        await browser.pause(500);
+
+        // calculate module
+        const calcBtn = await calcPage.getCalculateButton();
+        await calcBtn.click();
+        await browser.pause(300);
+
+        // check log messages presence
+        expect(await calcPage.hasLog()).toBe(true);
+        expect(await calcPage.nbLogEntries()).toBe(12);
+
+        // check that results are not empty (dichotomy did not convergence but results should be displayed anyway)
+        const hasResults = await calcPage.hasResults();
+        expect(hasResults).toBe(true);
+    });
 });
diff --git a/e2e/preferences.po.ts b/e2e/preferences.po.ts
index 4a3a5755cc3ebf7aec84f2e198608662da8ff6fc..57f921dd1a82ccab94ffe320daf0f57a9161d67f 100644
--- a/e2e/preferences.po.ts
+++ b/e2e/preferences.po.ts
@@ -84,4 +84,9 @@ export class PreferencesPage {
         const input = await this.getInputFromName("nmi");
         await input.setValue(n.toString());
     }
+
+    async setComputePrecision(p: number) {
+        const input = await this.getInputFromName("cp");
+        await input.setValue(p.toString());
+    }
 }