diff --git a/awx/main/models/ha.py b/awx/main/models/ha.py
index 6e40ec12a7..455d10d2cb 100644
--- a/awx/main/models/ha.py
+++ b/awx/main/models/ha.py
@@ -374,6 +374,11 @@ class Instance(HasPolicyEditsMixin, BaseModel):
             self.memory = new_memory
             update_fields.append('memory')
 
+        # Do not mark nodes READY if cpu or memory is zero
+        if not errors and self.node_type != Instance.Types.HOP and (not new_cpu or not new_memory):
+            errors = _('Health check for {} reported invalid values: cpu={}, memory={}').format(self.hostname, new_cpu, new_memory)
+            logger.warning(errors)
+
         if not errors:
             self.refresh_capacity_fields()
             self.errors = ''