[变频空调维修]-第10章-存储器故障-第4节-存储器数据错误,上电报“存储器故障”

技术支持评论1,479字数 1511阅读5分2秒阅读模式

空调培训资料缩略图

第4节 存储器数据错误,上电报“存储器故障”

故障说明

海信KFR-26GW/11BP挂式交流变频空调器遥控开机后室外风机和压缩机均不运行。图10-46所示为室外机存储器电路原理图。

图10-46 海信KFR-26GW/11BP室外机存储器电路原理图

图10-46 海信KFR-26GW/11BP室外机存储器电路原理图

1.故障代码

将空调器通上电源,遥控开机后室外机不运行,按压遥控器上“传感器切换”键2次,室内机显示板“定时、运行(蓝)、电源”指示灯同时闪烁报出故障代码,查看代码含义为“室外机存储器故障”。

如图10-47所示,取下室外机外壳,室外机主板直流12V电压指示灯亮,说明开关电源工作正常,查看模块板上指示灯闪13次,报故障代码仍为“存储器故障”,判断模块板上存储器电路出现故障。

图10-47 故障代码含义为“存储器故障”

图10-47 故障代码含义为“存储器故障”

说明:本机室内机主板没有存储器。

2.取下存储器试机

如图10-48所示,由于此系列模块取下存储器后,室外风机和压缩机也能运行,因此可以作为判断存储器好坏的方法使用。断开空调器电源,待室外机主板开关电源停止工作后,取下模块板上存储器,再次通上电源遥控开机,压缩机和室外风机开始运行,并能正常制冷,因而确定存储器损坏。

图10-48 取下存储器后室外机运行

图10-48 取下存储器后室外机运行

维修措施

使用编程器对存储器重写数据。

如图10-49所示,编程器内部存有本机模块板存储器的数据,因此使用编程器“脱机写数据”功能进行复制。拨动挡位开关至“电池”位置,编程上电复位后,选择写数据功能。

图10-49 编程器选择“脱机写数据”

图10-49 编程器选择“脱机写数据”

如图10-50所示,将模块板上的存储器放在子块插座上,查看本机模块板数据的区号和编号,并将数据写入存储器(写入数据时自动将原来的数据清除),写入后将存储器安装在模块板上面,将空调器通上电源,遥控开机后模块板不再报“存储器故障”代码,压缩机和室外风机开始运行,制冷正常,故障排除。

图10-50 写入完成后安装在模块板

图10-50 写入完成后安装在模块板

总结

模块板上电报“存储器故障”,说明是存储器电路出现故障。为判断存储器是否损坏,可将其取下,再开机试验,如果室外风机和压缩机开始运行,可确定为存储器内部数据故障(存储器硬件一般不会损坏);如果故障依旧,可说明存储器正常,应检查存储器电路。特别需要注意的是,此方法只适用于海信2003~2005年生产的部分型号的变频空调器,主要特征为:模块板实物外观如图10-51所示,CPU型号88CH47FG,存储器型号93C46,模块板上只有1个指示灯,也就是说,此系列模块即使没有存储器也能正常工作。

图10-51 不需要存储器的模块板特点

图10-51 不需要存储器的模块板特点

早期或后期空调器室外机主板或模块板如果没有存储器,则不能工作,上电后立即报出“存储器故障”的代码,压缩机和室外风机始终不运行。


Warning: file_exists(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/2024/02) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2036

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/2024) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/avatar) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-content/themes/begin/inc/avatar-cache.php on line 7

Warning: file_exists(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/avatar) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2036

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www/wwwroot) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/www) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_dir(): open_basedir restriction in effect. File(/) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-includes/functions.php on line 2047

Warning: is_file(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/avatar/b32f9e95aaf5f958e5327dc1538e4e1c96.png) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-content/themes/begin/inc/avatar-cache.php on line 21

Warning: is_file(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/avatar/b32f9e95aaf5f958e5327dc1538e4e1c-d.png) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-content/themes/begin/inc/avatar-cache.php on line 22

Warning: fopen(): open_basedir restriction in effect. File(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/avatar/b32f9e95aaf5f958e5327dc1538e4e1c-d.png) is not within the allowed path(s): (/www/wwwroot/yxjdzl.com/:/tmp/) in /www/wwwroot/yxjdzl.com/wp-content/themes/begin/inc/avatar-cache.php on line 26

Warning: fopen(/www/wwwroot/www.yxjdzl.com/wp-content/uploads/avatar/b32f9e95aaf5f958e5327dc1538e4e1c-d.png): failed to open stream: Operation not permitted in /www/wwwroot/yxjdzl.com/wp-content/themes/begin/inc/avatar-cache.php on line 26

Warning: fclose() expects parameter 1 to be resource, bool given in /www/wwwroot/yxjdzl.com/wp-content/themes/begin/inc/avatar-cache.php on line 27
管理员
  • 本文由 发表于 2018年6月4日 18:00:41
  • 除非特殊声明,本站文章均为原创,转载请务必保留本文链接
自制美的变频空调检测仪二代 硬件开发

自制美的变频空调检测仪二代

检测仪简介 256*160大分辨率,适配外壳为125mm*80mm*32mm 支持5V i2c检测口和LNS检测口,修板子除通讯故障外均建议用i2c接口 自动判断当前插入的接口(5V i2c还是LNS...
自制 美的专区

自制”美的变频空调检测仪”教程

2021年4月14日更新 说明   本人不卖硬件、不卖成品、和硬件商家无任何关系、非美的厂家人员,这个教程主要是为了方便广大维修工,本人是业余独立开发者,bug避免不了,但我会持续不定时更新,不断完善...
匿名

发表评论

匿名网友 填写信息

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen:

确定