diff --git a/src/hm/hmInverter.h b/src/hm/hmInverter.h
index d74fdc6d..933d0ccc 100644
--- a/src/hm/hmInverter.h
+++ b/src/hm/hmInverter.h
@@ -732,7 +732,8 @@ class Inverter {
                 case 149:  return String(F("Grid: Island detected"));
 
                 case 150:  return String(F("DCI exceeded"));
-
+                case 151:  return String(F("Grid: Severe grid wave distortion"));
+                
                 case 171:  return String(F("Grid: Abnormal phase difference between phase to phase"));
                 case 181:  return String(F("Abnormal insulation impedance"));
                 case 182:  return String(F("Abnormal grounding"));
@@ -755,6 +756,8 @@ class Inverter {
                 case 221:  return String(F("PV-4: Input overvoltage"));
                 case 222:  return String(F("PV-4: Input undervoltage"));
 
+                case 223:  return String(F("Grid: Connection attempt failed"));
+
                 case 301:  return String(F("FB short circuit failure"));
                 case 302:  return String(F("FB short circuit failure"));
                 case 303:  return String(F("FB overcurrent protection failure"));
diff --git a/tools/rpi/hoymiles/decoders/__init__.py b/tools/rpi/hoymiles/decoders/__init__.py
index 0d370cea..0555808c 100644
--- a/tools/rpi/hoymiles/decoders/__init__.py
+++ b/tools/rpi/hoymiles/decoders/__init__.py
@@ -268,6 +268,7 @@ class EventsResponse(UnknownResponse):
             147: 'Power grid outage', # 0x93
             148: 'Grid disconnection', # 0x94
             149: 'Island detected', # 0x95
+            151: 'Severe grid wave distortion', # 0x97
             205: 'Input port 1 & 2 overvoltage', # 0xCD
             206: 'Input port 3 & 4 overvoltage', # 0xCE
             207: 'Input port 1 & 2 undervoltage', # 0xCF
@@ -286,6 +287,7 @@ class EventsResponse(UnknownResponse):
             220: 'PV-3 Input undervoltage', # 0xDC
             221: 'PV-4 Input overvoltage', # 0xDD
             222: 'PV-4 Input undervoltage', # 0xDE
+            223: 'Grid connection attempt failed', #0xDF
             301: 'Hardware error code 301', # 0x012D
             302: 'Hardware error code 302', # 0x012E
             303: 'Hardware error code 303', # 0x012F