diff --git a/tasmota/xsns_69_opentherm.ino b/tasmota/xsns_69_opentherm.ino
index cfcc0384d..23df42a90 100644
--- a/tasmota/xsns_69_opentherm.ino
+++ b/tasmota/xsns_69_opentherm.ino
@@ -467,8 +467,11 @@ uint8_t sns_opentherm_read_flags(char *data, uint32_t len)
 // flag value, however, this command does not update the settings.
 #define D_CMND_SET_HOT_WATER_ENABLED "dhw"
 
+// BLOR - Reset boiler 
+#define D_CMND_BLLOR "blor"
+
 const char kOpenThermCommands[] PROGMEM = D_PRFX_OTHERM "|" D_CMND_OTHERM_BOILER_SETPOINT "|" D_CMND_OTHERM_DHW_SETPOINT
-	    "|" D_CMND_OTHERM_SAVE_SETTINGS "|" D_CMND_OTHERM_FLAGS "|" D_CMND_SET_CENTRAL_HEATING_ENABLED "|" D_CMND_SET_HOT_WATER_ENABLED;
+	    "|" D_CMND_OTHERM_SAVE_SETTINGS "|" D_CMND_OTHERM_FLAGS "|" D_CMND_SET_CENTRAL_HEATING_ENABLED "|" D_CMND_SET_HOT_WATER_ENABLED "|" D_CMND_BLLOR;
 
 void (*const OpenThermCommands[])(void) PROGMEM = {
     &sns_opentherm_boiler_setpoint_cmd,
@@ -476,7 +479,8 @@ void (*const OpenThermCommands[])(void) PROGMEM = {
     &sns_opentherm_save_settings_cmd,
     &sns_opentherm_flags_cmd,
     &sns_opentherm_set_central_heating_cmd,
-    &sns_opentherm_set_hot_water_cmd};
+    &sns_opentherm_set_hot_water_cmd,
+    &sns_opentherm_blor_cmd,};
 
 void sns_opentherm_cmd(void) { }
 void sns_opentherm_boiler_setpoint_cmd(void)
@@ -550,6 +554,17 @@ void sns_opentherm_set_hot_water_cmd(void)
     ResponseCmndNumber(sns_ot_boiler_status.m_enableHotWater ? 1 : 0);
 }
 
+void sns_opentherm_blor_cmd(void)
+{
+    bool query = strlen(XdrvMailbox.data) == 0;
+    bool retval = false;
+    if (!query)
+    {
+        if (atoi(XdrvMailbox.data)) retval = sns_opentherm_call_blor();
+    }
+    ResponseCmndNumber(retval);
+}
+
 /*********************************************************************************************\
  * Interface
 \*********************************************************************************************/
diff --git a/tasmota/xsns_69_opentherm_protocol.ino b/tasmota/xsns_69_opentherm_protocol.ino
index bc821640a..b281f4781 100644
--- a/tasmota/xsns_69_opentherm_protocol.ino
+++ b/tasmota/xsns_69_opentherm_protocol.ino
@@ -32,6 +32,7 @@ typedef union {
         uint8_t notSupported : 1; // If set, boiler does not support this command
         uint8_t supported : 1;    // Set if at least one response were successfull
         uint8_t retryCount : 2;   // Retry counter before notSupported flag being set
+        uint8_t skip : 1;       // Only manual call        
     };
 } OpenThermParamFlags;
 
@@ -243,7 +244,16 @@ OpenThermCommand sns_opentherm_commands[] = {
      .m_ot_make_request = sns_opentherm_get_generic_u16,
      .m_ot_parse_response = sns_opentherm_parse_generic_u16,
      .m_ot_appent_telemetry = sns_opentherm_tele_generic_u16},
+    {// Boiler Lock-out Reset command
+     .m_command_name = "BLOR",
+     .m_command_code = (uint8_t)OpenThermMessageID::Command,
+     .m_flags = {.skip = 1},
+     .m_results = {{.m_u8 = 0}, {.m_u8 = 0}},
+     .m_ot_make_request = sns_opentherm_send_blor,
+     .m_ot_parse_response = sns_opentherm_parse_generic_u16,
+     .m_ot_appent_telemetry = sns_opentherm_tele_u8_u8},
 };
+#define SNS_OT_COMMANDS_COUNT (sizeof(sns_opentherm_commands) / sizeof(OpenThermCommand))
 
 /////////////////////////////////// Process Slave Status Flags & Control //////////////////////////////////////////////////
 unsigned long sns_opentherm_set_slave_flags(struct OpenThermCommandT *self, struct OT_BOILER_STATUS_T *status)
@@ -431,6 +441,32 @@ void sns_opentherm_tele_oem_diag(struct OpenThermCommandT *self)
     ResponseAppend_P(PSTR("%d"), (int)self->m_results[0].m_u16);
 }
 
+/////////////////////////////////// Boiler Boiler Lock-out Reset  //////////////////////////////////////////////////
+unsigned long sns_opentherm_send_blor(struct OpenThermCommandT *self, struct OT_BOILER_STATUS_T *status)
+{
+    AddLog(LOG_LEVEL_ERROR, PSTR("[OTH]: Call Boiler Lock-out Reset"));
+    
+    self->m_flags.skip = true; // Disable future calls of this command
+
+    unsigned int data = 1; //1 : “BLOR”= Boiler Lock-out Reset command
+    data <<= 8;
+    return OpenTherm::buildRequest(OpenThermMessageType::OPTH_WRITE_DATA, OpenThermMessageID::Command, data);
+}
+
+bool sns_opentherm_call_blor() 
+{
+    for (int i = 0; i < SNS_OT_COMMANDS_COUNT; ++i)
+    {
+        struct OpenThermCommandT *cmd = &sns_opentherm_commands[i];
+        if (!strcmp(cmd->m_command_name, "BLOR") && cmd->m_flags.skip) {
+          cmd->m_flags.skip = false;
+          return true;
+        }
+    }
+
+    return false;
+}
+
 /////////////////////////////////// Generic Single Float /////////////////////////////////////////////////
 unsigned long sns_opentherm_get_generic_float(struct OpenThermCommandT *self, struct OT_BOILER_STATUS_T *)
 {
@@ -488,7 +524,6 @@ void sns_opentherm_parse_boiler_temperature(struct OpenThermCommandT *self, stru
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-#define SNS_OT_COMMANDS_COUNT (sizeof(sns_opentherm_commands) / sizeof(OpenThermCommand))
 int sns_opentherm_current_command = SNS_OT_COMMANDS_COUNT;
 
 unsigned long sns_opentherm_get_next_request(struct OT_BOILER_STATUS_T *boilerStatus)
@@ -552,7 +587,7 @@ void sns_opentherm_dump_telemetry()
     for (int i = 0; i < SNS_OT_COMMANDS_COUNT; ++i)
     {
         struct OpenThermCommandT *cmd = &sns_opentherm_commands[i];
-        if (!cmd->m_flags.supported)
+        if (!cmd->m_flags.supported || cmd->m_flags.skip)
         {
             continue;
         }
@@ -568,7 +603,9 @@ void sns_opentherm_protocol_reset()
     for (int i = 0; i < SNS_OT_COMMANDS_COUNT; ++i)
     {
         struct OpenThermCommandT *cmd = &sns_opentherm_commands[i];
+        int skip = cmd->m_flags.skip;
         cmd->m_flags.m_flags = 0;
+        cmd->m_flags.skip = skip;
         memset(cmd->m_results, 0, sizeof(OpenThermCommandT::m_results));
     }
 }