diff --git a/constrain/library/vav_turndown_during_reheat.py b/constrain/library/vav_turndown_during_reheat.py
index 9673d21b..28a920a9 100644
--- a/constrain/library/vav_turndown_during_reheat.py
+++ b/constrain/library/vav_turndown_during_reheat.py
@@ -33,6 +33,8 @@
 
 """
 
+import logging
+
 from constrain.checklib import RuleCheckBase
 
 
@@ -44,13 +46,11 @@ class VAVTurndownDuringReheat(RuleCheckBase):
     ]
 
     def verify(self):
-        # Make sure every value in `V_dot_VAV_max` is greater than 0
-        assert (
-            self.df["V_dot_VAV_max"] > 0
-        ).all(), "Not all `V_dot_VAV_max` values are greater than 0"
-
-        # Check if the `reheat_coil_flag` column has only False values
-        if (self.df["reheat_coil_flag"] == False).all():
+        # Check if the `reheat_coil_flag` column has only True/False value
+        if self.df["reheat_coil_flag"].nunique() == 1:
+            self.df["result"] = "Untested"
+        elif (self.df["V_dot_VAV_max"] == 0).any():
+            logging.error("Any `V_dot_VAV_max` value shouldn't be zero.")
             self.df["result"] = "Untested"
         else:
             self.df["V_dot_VAV_ratio"] = self.df["V_dot_VAV"] / self.df["V_dot_VAV_max"]
diff --git a/constrain/schema/library.json b/constrain/schema/library.json
index c4b061dc..f87c1423 100644
--- a/constrain/schema/library.json
+++ b/constrain/schema/library.json
@@ -1602,7 +1602,7 @@
         "description_verification_type": "procedure-based",
         "assertions_type": "pass",
         "description_assertions": [
-            "if (reheat_coil_flag == False).all():",
+            "if reheat_coil_flag.nunique() == 1:",
             "    Untested",
             "else: ",
             "  V_dot_VAV_ratio = V_dot_VAV/V_dot_VAV_max",
diff --git a/tests/test_vav_turndown_during_reheat.py b/tests/test_vav_turndown_during_reheat.py
index 80e32a31..b97b8523 100644
--- a/tests/test_vav_turndown_during_reheat.py
+++ b/tests/test_vav_turndown_during_reheat.py
@@ -91,7 +91,7 @@ def test_vav_turndown_during_reheat_fail(self):
         binary_result = verification_obj.check_bool()
         self.assertFalse(binary_result)
 
-    def test_vav_turndown_during_reheat_untested(self):
+    def test_vav_turndown_during_reheat_no_reheat_untested(self):
         points = [
             "reheat_coil_flag",
             "V_dot_VAV",
@@ -127,3 +127,77 @@ def test_vav_turndown_during_reheat_untested(self):
 
         self.assertEqual(results, expected_results)
         self.assertEqual(verification_obj.check_bool(), "Untested")
+
+    def test_vav_turndown_during_reheat_all_reheat_untested(self):
+        points = [
+            "reheat_coil_flag",
+            "V_dot_VAV",
+            "V_dot_VAV_max",
+        ]
+
+        timestamp = [
+            datetime(2024, 8, 1, 12, 0, 0),
+            datetime(2024, 8, 1, 13, 0, 0),
+            datetime(2024, 8, 1, 14, 0, 0),
+            datetime(2024, 8, 1, 15, 0, 0),
+        ]
+
+        data = [
+            [True, 350, 620],
+            [True, 370, 620],
+            [True, 360, 620],
+            [True, 380, 620],
+        ]
+
+        df = pd.DataFrame(data, columns=points, index=timestamp)
+
+        verification_obj = run_test_verification_with_data(
+            "VAVTurndownDuringReheat", df
+        )
+        results = list(verification_obj.result)
+        expected_results = [
+            "Untested",
+            "Untested",
+            "Untested",
+            "Untested",
+        ]
+
+        self.assertEqual(results, expected_results)
+        self.assertEqual(verification_obj.check_bool(), "Untested")
+
+    def test_vav_turndown_during_reheat_zero_V_dot_VAV_max_untested(self):
+        points = [
+            "reheat_coil_flag",
+            "V_dot_VAV",
+            "V_dot_VAV_max",
+        ]
+
+        timestamp = [
+            datetime(2024, 8, 1, 12, 0, 0),
+            datetime(2024, 8, 1, 13, 0, 0),
+            datetime(2024, 8, 1, 14, 0, 0),
+            datetime(2024, 8, 1, 15, 0, 0),
+        ]
+
+        data = [
+            [True, 350, 0],
+            [True, 370, 0],
+            [True, 360, 620],
+            [True, 380, 620],
+        ]
+
+        df = pd.DataFrame(data, columns=points, index=timestamp)
+
+        verification_obj = run_test_verification_with_data(
+            "VAVTurndownDuringReheat", df
+        )
+        results = list(verification_obj.result)
+        expected_results = [
+            "Untested",
+            "Untested",
+            "Untested",
+            "Untested",
+        ]
+
+        self.assertEqual(results, expected_results)
+        self.assertEqual(verification_obj.check_bool(), "Untested")