diff --git a/src/ems_devices.h b/src/ems_devices.h
index 600db0479..0030a7d83 100644
--- a/src/ems_devices.h
+++ b/src/ems_devices.h
@@ -194,16 +194,16 @@ const _Thermostat_Type Thermostat_Types[] = {
     {EMS_MODEL_RC20F, 93, 0x18, "RC20F", EMS_THERMOSTAT_WRITE_YES},
     {EMS_MODEL_RC30, 78, 0x10, "RC30/Nefit Moduline 400", EMS_THERMOSTAT_WRITE_YES},
     {EMS_MODEL_RC35, 86, 0x10, "RC35", EMS_THERMOSTAT_WRITE_YES},
-    {EMS_MODEL_RC310, 158, 0x10, "RC3x0/Nefit Moduline 1010H", EMS_THERMOSTAT_WRITE_YES},
-    {EMS_MODEL_1010, 165, 0x18, "Nefit Moduline 1010", EMS_THERMOSTAT_WRITE_YES},
+    {EMS_MODEL_RC310, 158, 0x10, "RC3x0/Nefit Moduline 1010H", EMS_THERMOSTAT_WRITE_NO},
+    {EMS_MODEL_1010, 165, 0x18, "Nefit Moduline 1010", EMS_THERMOSTAT_WRITE_NO},
 
     // Sieger
     {EMS_MODEL_ES73, 76, 0x10, "Sieger ES73", EMS_THERMOSTAT_WRITE_YES},
 
     // Junkers
-    {EMS_MODEL_FR10, 111, 0x18, "Junkers FR10", EMS_THERMOSTAT_WRITE_YES},
-    {EMS_MODEL_FR100, 105, 0x18, "Junkers FR100", EMS_THERMOSTAT_WRITE_YES},
-    {EMS_MODEL_FR110, 108, 0x18, "Junkers FR110", EMS_THERMOSTAT_WRITE_YES}
+    {EMS_MODEL_FR10, 111, 0x18, "Junkers FR10", EMS_THERMOSTAT_WRITE_NO},
+    {EMS_MODEL_FR100, 105, 0x18, "Junkers FR100", EMS_THERMOSTAT_WRITE_NO},
+    {EMS_MODEL_FR110, 108, 0x18, "Junkers FR110", EMS_THERMOSTAT_WRITE_NO}
 
 
 };