diff --git a/src/iflytop/core/error/error_code.hpp b/src/iflytop/core/error/error_code.hpp
index b1c870d..dea162c 100644
--- a/src/iflytop/core/error/error_code.hpp
+++ b/src/iflytop/core/error/error_code.hpp
@@ -30,6 +30,7 @@ typedef enum {
   kce_disinfectant_insufficient          = 600,  // 消毒液不足
   kce_the_bottom_of_the_device_has_water = 601,  // 设备底部有水
   kcd_the_evaporation_bin_has_water      = 602,  // 蒸发仓有水
+  kcd_the_sensor_is_prehearting          = 603,  // 传感器正在预热
 
   /**
    * @brief 通信错误