简介

2000款 奇骏 的空调有时候制冷有时候不制冷。 空调只有当压缩机当离合器接合时,空调系统会制冷,但离合器结合但快速退出时,空调只会从冷风转为暖风。

热敏电阻连接器位于手套箱下方。 您可以看到白色连接器在下方悬着。
  • 热敏电阻连接器位于手套箱下方。 您可以看到白色连接器在下方悬着。

  • 热敏电阻的作用是保持蒸发器不会被冻住。 通过热敏电阻测量温度来决定是否让蒸发器在40华氏度时让蒸发器启动除霜。

  • 找到您的空调压缩机。 压缩机离合器位于中心区域。 如果离合器接合,中心区域将转动。 热敏电阻决定离合器的结合与分离,以防止蒸发器被冻结。

  • 这些是要完成本指南所需要的工具。

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测试打着车打开空调后的热敏电阻。
  • 测试打着车打开空调后的热敏电阻。

  • 使用电压表(设置为直流伏特(DC Volts)),绿色/橙色线将带有保险盒内保保险丝#29的电瓶电压(约13.5vdc)。

  • 蓝线将从交流控制组件的电池接地。

  • 最重要的线是蓝色和黑色线。 当热敏电阻打开(温度高于45华氏度)时,电压表将显示小于0.5伏。 当热敏电阻关闭(温度低于40华氏度)时,它将显示额定的4-5伏特。

  • 在初始运行时,蒸发器的温度将高于45度,电压表读数应小于0.5伏。 当蒸发器的温度低于40华氏度时,电压表将读取4-5伏特,使空调压缩机关闭。 这样可以防止蒸发器冻结。

  • 当您首次打开交流电源时,如果您的热敏电阻读数为4-5伏,则热敏电阻出现故障,需要更换。

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  • 要更换热敏电阻就需要移除手套箱。

  • 移除顶部四颗螺丝和图片所展示的下方的两颗螺丝。

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  • 使用十字螺丝刀移除三颗螺丝。(画橙色圈的螺丝)

  • 使用10mm 扳手 移除螺栓(图片上标注为蓝色方框) 右侧的两个很容易能看见,但是左侧的在结构后面不太好看见。

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  • 这里有点棘手了。当然,正确方法是完全拆下系统并卸下蒸发器,用点小聪明就可以10分钟内更换。

  • 通过分离两个半壳来打开蒸发壳。 我使用弹簧夹,向后,以帮助我分开两半。

  • 使用一双长鼻针钳,轻轻地将热敏电阻从蒸发器散热片中取出。

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  • 我在经销商处购买了一个新的热敏电阻,价格为52美元。 使用长针头钳将新的热敏电阻安装到蒸发器散热片中。

  • 从支架上拆下连接器很困难,我弄坏了支架。 我很高兴看到新的热敏电阻附带了一个新的安装支架。 您将需要一个小的金属板螺丝将安装支架固定在现有安装支架旁边的孔中。 他们为您安装了一个新的支架。 (我猜他们也会把支架弄断才会配有这个支架的。

Be careful when installing the new one, the attachment arm can break fairly easy if you force it.

Tom - 回复

结论

要重新组装您的空调系统,请按照本指南的相反顺序进行操作。

25等其他人完成本指南。

特别感谢这些译者︰

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Doug Layne

于2012年06月21日注册

955 信誉积分

撰写一个指南

Excellent information. My 2003 Xterra was acting up with the AC compressor kicking off and on when the vehicle got up to temperature. One mechanic told me the compressor was knocking and ready to fail. I found out that it was simply overcharged with Freon after a high pressure AC hose replacement. It has worked fine for two years now after getting the Freon right.

Glenn - 回复

Article by Doug Layne was the answer to my 2000 Nissan Frontier Crew Cab. The Thermo Amplifier was the cause of my problem. A/C works like new. Also make sure you clean inside the unit. I have no idea how so much dirt got into the unit. Must be poor design.

Thanks Doug from another Doug

Doug Wacha - 回复

What was yours doing and what did you do to fix it.I just got mine 01 and the compressor is working but not cooling much.please help.

jbegleybuild -

What was yours doing.my compressor is working and the garage charged it but not getting cold.they said they thouhht it was the expansion valve.what do you think

jbegleybuild -

In step 6, part of the sentence is cut off, what should it say: "They provided a hole for you to mount the new bracket. ( I guess they al"

Karen Strong - 回复

This info was awesome! I was having the same problem ( cold air and when you shut the car off it might not come back for 10 - 15 min after restart. got an ac thermistor amplifier and did the install as shown ( great pictures and info ) and problem is fixed. Thanks for sharing . Wife drives the xterra and is very happy :) :)

rkcarcare - 回复

What if you don't pick up any volts from the blue/black wire?

Eddie luna - 回复

My 2003 Xterra was having same issue. Replacing thermistor was the fix but 2003 Xterra used a two wire component instead of three. Nissan PN 27723-8J000.

ben1542 - 回复

My 2002 Xterra AC worked intermittently the past two summers. It would often start fine in the morning but not work after a couple of stops. I could hear the solinoid clicking but just couldn't get the cold air to come on again. A mechanic said it needed a new clutch/compressor unit. Fortunately my son was able to replace the thermistor using your instructions. It works like new now - and at a savings of at least $600. If I'd gone to the expense of replacing the unit, the problem would still exist. Thank you for saving us a bundle!

Connie - 回复

2004 frontier replace all of my a/c component holds vacuum got the freon ,check all of the relays and still the compressor still no engaging comes on sometimes please help.

amartell79 - 回复

How do you release the thermistor plug from under the dash? it seems like it is screwed in place and doesn't want to release from the dash

tom - 回复

If you were to recharge a ac using a ac recharge on a 2013 xterra what port would you use the low

ac port or the evap test booster?

Kyle - 回复

Where is the acc compress located on a 2003 Nissan xterra

onealpat.5 - 回复

I think it is the same as my 2000 Frontier. Looking at the engine its on the right side.

The pulley looks different that the others because of the clutch.

Russ -

What if you have 12 volts on the blue and black wire? I replaced my thermostor and still same issue. The new one looks different though.

Russ - 回复

Worked on my Nissan 2000 Xterra,,, had tried other stuff with no success ,

morajuan80@gmail.com - 回复

So far this seems to have fixed my intermittent cooling issue on my 2002 Frontier.

I had to take out the middle parts of the dash as well around the dials, I needed more room to work. It’s a tight area to work in.

even so, I broke the connecting arm on my first attempt of putting the new one in. Takes patience, and don’t force it. The second attempt went much better. $30 part at O'Reilly.

thanks for posting this! Nicely done

Tom - 回复

mingalarpar friends

mg myo - 回复

Do you think this is too ambitious for an amiture???

smudgeandnatthecat - 回复

I have a 2001 Nissan Xterra that is having the same issue. The compressor clutch kicking off/ on intermittently. Then, Stays off & starts blowing just warm air. It has a brand new Condenser, Compressor, Low Pressure Line. And, Full of Freon. So, I ordered a new Thermistor(Nissan PN: 27675-9Z000). I ordered from Amazon. I hope it's the correct one. And, That it fixes the issue I'm having. Because, This Oklahoma Heat & Humidity is horrible!!

carver_jm1980 - 回复

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