diff --git a/templates/definition/meter/solarmax-maxstorage.yaml b/templates/definition/meter/solarmax-maxstorage.yaml
index 2a7ac887f..7bdb19940 100644
--- a/templates/definition/meter/solarmax-maxstorage.yaml
+++ b/templates/definition/meter/solarmax-maxstorage.yaml
@@ -119,6 +119,6 @@ render: |
       - case: 3 # charge (not implemented)
         set:
           source: error
-          error: ErrNotImplemented
+          error: ErrNotAvailable
   capacity: {{ .capacity }} # kWh
   {{- end }}