diff --git a/openconcept/__init__.py b/openconcept/__init__.py
index a82b376d..72f26f59 100644
--- a/openconcept/__init__.py
+++ b/openconcept/__init__.py
@@ -1 +1 @@
-__version__ = "1.1.1"
+__version__ = "1.1.2"
diff --git a/openconcept/thermal/heat_exchanger.py b/openconcept/thermal/heat_exchanger.py
index d2e831d2..edada7f0 100644
--- a/openconcept/thermal/heat_exchanger.py
+++ b/openconcept/thermal/heat_exchanger.py
@@ -1,5 +1,5 @@
 import numpy as np
-from openmdao.api import ExplicitComponent, Group
+from openmdao.api import ExplicitComponent, Group, AnalysisError
 from openconcept.utilities import DVLabel
 
 
@@ -264,7 +264,7 @@ def compute(self, inputs, outputs):
         fc_1 = inputs["alpha_cold"] ** -0.1856 * inputs["delta_cold"] ** 0.3053 * inputs["gamma_cold"] ** -0.2659
         fc_2 = inputs["alpha_cold"] ** 0.92 * inputs["delta_cold"] ** 3.767 * inputs["gamma_cold"] ** 0.236
         if np.min(inputs["Re_dh_cold"]) <= 0.0:
-            raise ValueError(self.msginfo, inputs["Re_dh_cold"])
+            raise AnalysisError(f"One of the Re numbers in {inputs['Re_dh_cold']} is negative", msginfo=self.msginfo)
         outputs["j_cold"] = (
             0.6522
             * inputs["Re_dh_cold"] ** -0.5403
@@ -682,7 +682,9 @@ def compute(self, inputs, outputs):
         outputs["h_conv_cold"] = inputs["Nu_dh_cold"] * inputs["k_cold"] / inputs["dh_cold"]
         outputs["h_conv_hot"] = inputs["Nu_dh_hot"] * inputs["k_hot"] / inputs["dh_hot"]
         if np.min(outputs["h_conv_cold"]) <= 0.0:
-            raise ValueError(self.msginfo)
+            raise AnalysisError(
+                f"One of the heat tranfer coeffcients in {outputs['h_conv_cold']} is negative", msginfo=self.msginfo
+            )
 
     def compute_partials(self, inputs, J):
         J["h_conv_cold", "Nu_dh_cold"] = inputs["k_cold"] / inputs["dh_cold"]
@@ -777,7 +779,9 @@ def compute(self, inputs, outputs):
 
         m_cold = np.sqrt(2 * h_c / k / t_f)
         if np.min(h_c) <= 0.0:
-            raise ValueError(self.msginfo)
+            raise AnalysisError(
+                f"One of the heat tranfer coeffcients in {inputs['h_conv_cold']} is negative", msginfo=self.msginfo
+            )
         eta_f_cold = 2 * np.tanh(m_cold * l_f_c / 2) / m_cold / l_f_c
         outputs["eta_overall_cold"] = 1 - inputs["fin_area_ratio_cold"] * (1 - eta_f_cold)
 
diff --git a/openconcept/thermal/tests/test_heat_exchanger.py b/openconcept/thermal/tests/test_heat_exchanger.py
index 10413335..7efc5632 100644
--- a/openconcept/thermal/tests/test_heat_exchanger.py
+++ b/openconcept/thermal/tests/test_heat_exchanger.py
@@ -1,8 +1,13 @@
 import unittest
 import numpy as np
 from openmdao.utils.assert_utils import assert_near_equal, assert_check_partials
-from openmdao.api import IndepVarComp, Group, Problem
-from openconcept.thermal.heat_exchanger import HXGroup
+from openmdao.api import IndepVarComp, Group, Problem, AnalysisError
+from openconcept.thermal.heat_exchanger import (
+    OffsetStripFinData,
+    ConvectiveCoefficient,
+    FinEfficiency,
+    HXGroup,
+)
 
 
 class OSFGeometryTestGroup(Group):
@@ -52,6 +57,32 @@ def setup(self):
         self.add_subsystem("hx", HXGroup(), promotes=["*"])
 
 
+class AnalysisErrorChecks(unittest.TestCase):
+    def test_OSFdata(self):
+        prob = Problem()
+        prob.model.add_subsystem("OSFData", OffsetStripFinData(), promotes_inputs=["*"], promotes_outputs=["*"])
+        prob.setup()
+        prob.set_val("Re_dh_cold", val=-1.0)
+        with self.assertRaises(AnalysisError):
+            prob.run_model()
+
+    def test_Conv_coeff(self):
+        prob = Problem()
+        prob.model.add_subsystem("Conv_coeff", ConvectiveCoefficient(), promotes_inputs=["*"], promotes_outputs=["*"])
+        prob.setup()
+        prob.set_val("Nu_dh_cold", val=-1.0)
+        with self.assertRaises(AnalysisError):
+            prob.run_model()
+
+    def test_Fin_eff(self):
+        prob = Problem()
+        prob.model.add_subsystem("Fin_eff", FinEfficiency(), promotes_inputs=["*"], promotes_outputs=["*"])
+        prob.setup()
+        prob.set_val("h_conv_cold", val=-1.0)
+        with self.assertRaises(AnalysisError):
+            prob.run_model()
+
+
 class OSFGeometryTestCase(unittest.TestCase):
     def test_default_settings(self):
         prob = Problem(OSFGeometryTestGroup(num_nodes=1))