diff --git a/superxas_bec/devices/timepix/timepix.py b/superxas_bec/devices/timepix/timepix.py
index 0095535..2f59780 100644
--- a/superxas_bec/devices/timepix/timepix.py
+++ b/superxas_bec/devices/timepix/timepix.py
@@ -776,7 +776,14 @@ class Timepix(PSIDeviceBase, TimePixControl):
         status_writer = None
         if self.hdf.enable.get() == "Enable":
             st2 = CompareStatus(self.hdf.write_file, ACQUIRESTATUS.DONE)
-            st3 = ExceptionStatus(self.hdf.write_status, 0, operation="!=")
+            st3 = ExceptionStatus(
+                self.hdf.write_status,
+                0,
+                operation="!=",
+                exception=RuntimeError(
+                    "HDF5 write failed, please check with support if the IOC has sufficient permissions to write to disk."
+                ),
+            )
             status_written_images = CompareStatus(self.hdf.num_captured, self._n_images)
             status_writer = st1 & st2 & status_written_images & st3