Midea NTH15-17BR User manual

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维修手册 Service Manual
适用机型 Applicable Models
NTH15-17BR
（本图片为参考示意图，具体外观和配置以实物为准）(The picture is only for reference, and
specific appearance and configuration are subject to the real product)
编制 Prepared by
叶阳雨
审核 Reviewed by
刘建林
批准 Approved by
肖荣

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重要安全通知
本维修手册仅用于具有适当电气、电子和机械经验背景的维修人员使用。
任何修理主要装置的测试均可能导致人身伤害和财产损失。
制造商或经销商不对本资料的内容和解释负责。
美的环境电器
技术手册
版权@2017
保留全部版权。未经美的环境电器外销书面批准，不得以任何形式全部或部分复制本手册。
Important Safety Notice
The Maintenance Manual is only for the use of maintenance personnel with certain experience and
background in electrical, electronic and mechanical field.
Any attempt to repair main devices may lead to personal injury and property loss.
Manufacturers or distributors are not responsible for the content of the Manual and interpretation
thereof.
Midea Environment Appliance
Technical Maintenance Manual
Copyright @2017
All rights reserved. Replication of all or part of the Manual in any forms shall not be allowed without
written approval by the Overseas Sales of Midea EnvironmentAppliance.

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1. 安全警示规范 Safety Warning Code
WARNING
1Read these instructions.
2Keep these instructions.
3Follow all instructions.
4Do not use this appliance near water. This appliance is intended to be used in
household and similar environments.
5Clean only with a damp cloth.
6Install in accordance with the manufacturer’s instructions.
7Do not defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
8Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where the exit from the appliance.
9Do not attempt to modify or extend the power cord of this appliance.
10 Unplug this appliance during lightning storms or when it will not be used for long
periods of time.
11 Make sure that the available AC power matches the voltage requirements of this
appliance.
12 Do not handle the plug with wet hands. This could result in an electric shock.
13 Unplug the power cord by holding the plug, never by pulling the cord.
14 Do not turn the appliance on or off by plugging or unplugging the power cord.
15 Refer all servicing to qualified service personnel. Servicing is required when the
appliance has been damaged in any way, such as the power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the appliance, the
appliance has been exposed to rain or moisture, does not operate normally, or has
been dropped.
16 To reduce the risk of fire or electric shock, do not expose this appliance to rain,
moisture, dripping, or splashing.
17 This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
18 Children should be supervised to ensure that they do not play with the appliance.
19 If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent, or similarly qualified person, in order to avoid a hazard.

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2. 整机拆卸 Dismantling of appliance
2.1 底座/后壳拆卸 Remove base/rear housing
1使用电批取下固定底座的螺钉；
2 取下底座，并且取下配重块；
3 将后壳滤网盖取下，并用电批取下固定后壳
的螺钉。
4 将前后壳的卡扣松开，取下后壳。
1. Use the electric batch to remove the screw of
the fixed base;
2. Remove the base and the weight distribution
block;
3. Remove the filter cover of the rear shell, and
remove the screw of the fixed rear shell by
electricity batch.
Release the front and rear shell clasp and
remove the back shell.
2.2 顶盖拆卸 The top to remove
1 使用电批取下固定顶盖的螺钉，取下顶盖；
2 使用电批取下固定控制电路板的螺钉，取下
控制电路板；
3 将面贴从顶盖上面取出。
1. Use the electric batch to remove the screw
fixing the cover and remove the cover;
2. Use electrical batch to remove the screw of
the fixed control board and remove the control

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board;
3. Remove the noodle paste from the top of the
cover.
2.3 风机组件的拆卸 Removal of fan assembly
1.将用来固定风机组件的螺钉用十字螺丝刀拆
卸，取下风机组件，并且拆开相应的接线帽。
1. Remove the screw used to fix the fan
assembly with the cross screwdriver, remove the
air unit parts, and open the corresponding
wiring cap.
2.4 PTC 拆卸 PTC disassembly
1. 从出风格栅里面取出 PTC 与PTC 支架；
2. 将PTC 支架引线从 PTC 支架里面取出，取下
PTC 发热体。
1. PTC and PTC supports were removed from the
air outlet grille;
2. Take the lead wire of PTC bracket out of PTC
bracket and remove the PTC heating body.
2.5 出风格栅拆卸 The air grid is removed

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1 使用电批取下固定同步电机的螺钉；
2 取下偏心轮；
3 将风叶压板取出；
4 取出摆风风叶并取出相应的支架。
1. Use electrical batch to remove the screws that
fix the synchronous motor;
2. Remove the eccentric wheel;
3. Take out the wind blade pressing plate;
4. Take out the swing air leaf and take out the
corresponding support
2.6 菱形网拆卸 Diamond mesh removal
1 使用一字批将菱形网的卡扣翘起，取出菱形
网。
1. Use a word batch to lift the card button of the
diamond net and take out the diamond net.
3. 整机的安装 Function and operation
3.1 网栅安装 Mesh is installed

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1. 取一前网，检查无掉漆、刮手后将扣脚对
准前壳网槽装进去并检查各扣位需完全卡到
位。
1. Take a front net, check that no paint has
been removed, put the buckle foot into the
front shell net slot after scraping, and check
that all fasteners need to be completely stuck
in place.
3.2 电源电路板安装 Power circuit board installation
1. 取电路板总成将其上的感应头安装在前壳
上；
2. 取电源电路板并用螺钉固定在前壳上。
1. Take the circuit board assembly and install
the induction head on it on the front shell;
2. Take the power circuit board and fix it on the
front shell with screws.
3.3 出风格栅的安装 Installation of the air grid
1. 分别取 3根竖向风叶将卡位筋对准风叶支
架卡槽安装到位；
2. 取一出风格栅将风叶组件对应插入 3个孔
位中，支架端放置于出风格栅卡槽位中；
3. 在出风格栅卡槽位处加少量润滑脂，取一
压板对应安装在出风格栅卡槽端，压住竖向
风叶。

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1. Three vertical wind blades were respectively
taken to install the clamping bars into the slot
of the air blade support;
2. Take a air grid and insert the air blade
assembly into 3 holes, and the support end is
placed in the slot of the air grid;
3. Add a small amount of grease to the position
of the outlet grid slot, take a pressure plate and
install it at the end of the outlet grid slot, and
press the vertical blade.
3.4 同步电机安装 Synchronous motor installation
1. 取一同步电机，将偏心轮孔（宽边朝内）
对准同步电机扁位按压到位；
2. 取适量润滑脂涂在偏心轮窄面周圈，并将
同步电机对应出风格栅风叶支架安装好，螺
钉孔对位。分别取 2颗ST3.9*12 螺钉将同步
电机紧固在出风格栅上；
3．将出风格栅组件对应安装入前壳组件中并
将同步电机的线束卡在卡槽上。
1. Take a synchronous motor and press the
eccentric hole (wide side facing inward) into
the flat position of the synchronous motor;
2. Apply proper amount of grease to the
narrow face circle of the eccentric wheel, and
install the synchronous motor corresponding to
the grille air blade bracket and screw hole in
the opposite position. Two ST3.9*12 screws

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were respectively taken to fasten the
synchronous motor on the outlet grid.
3. Install the outlet grille assembly into the
front shell assembly and attach the wire
harness of the synchronous motor to the slot.
3.5 PTC 的安装 The installation of the PTC
1. 取一 PTC 发热体检查散热片无变形，将 PTC
支架套入引脚中；
2. 取3组线束以直插端按红色线束接插于
PTC 带字端，蓝色线束插于中间端子，白色
线束插无字端；
3. 取一个 PTC 支架套入 PTC 发热体另一端并
将PTC 组件对应安装入出风格栅中。
1. A PTC heating body was taken to check that
the radiator fin was not deformed, and PTC
support was put into the pin;
2. Take 3 sets of wire bundles and insert them
at the PTC band word end with the straight
insertion end according to the red line bundle,
with the blue one at the middle terminal and
the white one at the untyped end;
3. Take a PTC bracket and install the PTC
component into the outlet grid.
3.6 风机组件的安装 Installation of fan assembly

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1. 取限温器组件线束安装在出风格栅上的卡
槽内；
2. 分别取 4颗ST3.9*13 螺钉将风机组件紧固
在前壳上；
3．分别取 4颗ST3.9*13 螺钉将风机组件紧固
在前壳上；
4. 将风机组件上的线束卡到卡槽内。
1. The wiring harness of the
temperature-limiting device component is
installed in the slot on the outlet grid;
2. Four ST3.9*13 screws were respectively
taken to fasten the fan assembly on the front
shell;
3. 4 ST3.9*13 screws were respectively taken
to fasten the fan assembly on the front shell.
4. Stick the wire bundle on the fan assembly
into the slot.
3.7 电源线的安装 Installation of power cord
1. 取一统配电源线组件，将引线穿入底盖孔
至电源线档卡套入孔位中并使用平口钳将档
卡旋转 90 度；
2. 取一跷板开关将限温器 187 端子穿过底盘
孔接插于“I”端，电源线火线（棕线）接插
于“O”端；
3．将跷板开关限位筋对应底盖槽位按压到底,
并将电源线布于底盖限位筋内。

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1. Take a unified power line component, insert
the lead wire into the bottom cover hole to the
power line tap card into the hole position, and
rotate the tap card 90 degrees with a flat
clamp;
2. Take a stilt-plate switch and insert the 187
terminal of the thermostat through the chassis
hole into the "I" end, and the power cord fire
(brown line) is connected to the "O" end;
3. Press the rocker switch limit bar to the
bottom of the bottom cover slot and place the
power cord in the bottom cover limit bar.
3.8 底盖安装 Bottom cover installation
1. 取一配重块将宽边孔位对应前壳限位柱放
置好。取一后壳检查无划花、变形、缺料等
不良，对准底部、前壳左右两侧卡扣按压到
位，完全吻合；
2. 将底盖对应前后壳套入，使用双手压住底
盖轻推使底部扣位完成卡到位。分别取 2颗
ST3.5*13 螺钉将底盖紧固。
1. Take a weight distribution block and place
the wide edge hole position corresponding to
the front shell limit column. Take a back shell
to check no scratches, deformation, lack of
materials, etc.
2. Insert the bottom cover into the front and
rear shell, and press the bottom cover with

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both hands to make the bottom buckle
complete. Two ST3.5*13 screws were
respectively taken to tighten the bottom cover.
3.9 顶盖安装 Roof installation
1. 将透明盖对应孔位安装到位；
2. 取一面贴对准缺口位及按键位粘贴摩平；
3. 分别取 3颗ST2.9*9.5 螺钉将电路板紧固在
顶盖上并确认按键手感；
4. 将顶盖对应前后壳套入，使用双手压住顶
盖轻推使顶部扣位完成卡到位并取 1颗
ST3.9*13 螺钉将顶盖紧固在后壳上。
1. Install the corresponding hole of the
transparent cover in place;
2. Take one side paste and apply it to the notch
position and key position.
3. Take 3 ST2.9*9.5 screws to fasten the circuit
board on the top cover and confirm the touch
of the key;
4. Insert the cover into the front and rear shell,
press the cover with both hands to make the
top buckle complete and put in place. Tighten
the cover on the back shell with a ST3.9*13
screw.
3.10 滤网盖安装 Screen cover installation

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1. 取2颗ST3.5*13 螺钉将前后壳紧固；
2. 取一过滤网安装在滤网盖中，并将滤网盖
对应安装在后壳上。
1. Take 2 ST3.5*13 screws to tighten the front
and rear shells;
2. Take a filter net and install it in the filter
cover, and install the filter cover on the back
cover.
4. 常见故障及解决方法 Fault code and solutions
故障代码
Fault code
故障内容 Fault
content
显示 Display
维修方法步骤 Steps for maintenance methods
不通电/不加热
No
electricity/heat
A、需检查有没有在非正常情况下使用，如有，需拆开控
制箱组件后，将手动限温器按下去；
B、如正常情况下使用，请更换手动限温器，手动限温器
值不准确；
内部端子松脱或接触不良：检查，排除故障
更换电路板
更换发热管
更换倾倒开关；
A. It is necessary to check whether it is used in
abnormal conditions. If so, after disassembling the control
box components, press the manual temperature limiter;
B. If it is used under normal circumstances, please
replace the manual temperature limiter. The value of the
manual temperature limiter is not accurate.
Loose internal terminal or poor contact: check,
troubleshoot
Replace circuit board
Replace the heat pipe
Replace the dump switch;

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5附录 Appendix:
5.1 整机接线图 Electrical Schematic Diagram
5.2 维修常用工具、设备和材料 refrigerator maintenance tooling and equipment and
material
工具 Tooling
No.
名称 Name
图片 Photo
主要用途 Main Usage
1
十字螺丝刀 Phillips
screwdriver
拆卸螺钉 screw assemble and
disassemble
2
平口螺丝刀/小铲刀
slotted screwdriver/scraper
拆卸螺钉和铆钉 screw and
rivet assemble and disassemble

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3
尖嘴钳 Nipper pliers
辅助工具 assistive tool

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美的环境电器
如需获得厂家详细技术咨询，请联系：
[e-mail]
环境电器事业部
外销
地址：中国广东省中山市东凤镇东阜路和穗工业园东区 28 号
Midea Environment Appliance
If you need to get detailed technical information from the manufacturer, please contact:
[e-mail]
EnvironmentAppliance Division
Overseas Sales
Address: Eastern 28th, Hesui industrial Park, Dongfu Road, Dongfeng Town, Zhongshan City,
Guangdong Province China