MBP 13" - 7,1 error: 4sns/1/40000000:tn1d-104.000

My computer fan runs constantly even when just using Firefox and the macbook also runs very hot. I've done a lot of audio recording in the past and the noise is always a problem. Also, last week I installed a couple programs to livestream video and hope I didn't fry something because my CPU was running over 100%.
The worst thing is that yesterday while I was watching a youtube video I began to see a bunch of horizontal white lines going back and forth across the entire screen. It didn't come back after a hard reboot but...
This morning I ran the hardware diagnostic test and it returned the following error message:
4sns/1/40000000:tn1d-104.000
Does anyone know what might be causing this?
Model Name:
MacBook Pro
Model Identifier:
MacBookPro7,1
Processor Name:
Intel Core 2 Duo
Processor Speed:
2.4 GHz
Number Of Processors:
1
Total Number Of Cores:
2
L2 Cache:
3 MB
Memory:
8 GB
Bus Speed:
1.07 GHz
Boot ROM Version:
MBP71.0039.B0B
SMC Version (system):
1.62f7

The fan in the MBP will run high as a default if the sensor has failed (6200 rpm). Did you tell the technician about the AHT error message? Did he take any corrective action or tell you specifically what options there were to rectify the situation?
Based on your reply, I am concerned that you may have gotten a short shrift.
Ciao.

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I am getting error 4SNS/1/40000000: TG0H-128.000 ? what does this mean.

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I really don't know. Could be as simple as a cable. iMac's hard drives do have a sensor cable attached to the drive from the logic board. But there's really no way of telling. I assume apple gives estimates for repairs.

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I have some problems with my Mac Book Pro 7.1,
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Welcome to Apple Support Communities
This error is showing a problem with the logic board controller sensor. The only thing you can do is to take your computer to an Apple Store or reseller to have the computer repaired. Read > http://reviews.cnet.com/8301-13727_7-57352461-263/how-to-invoke-and-interpret-th e-apple-hardware-tests/
Did you run Apple Hardware Test with the charger connected? If not, connect it to the charger and run Apple Hardware Test again

Error: 4SNS/1/40000000:TGOD-86.000

I am a full time grad student and desperately need my computer to function properly.
I have a macbook pro that I purchased last year. Its had problems from about 4 months after the purchase until I took it in to be repaired in January 09. An Apple Tech replaced my entire HD (he said some blocks were failing in my HD).
Since then my 1 year "Apple Care" has run out and now my computer does not sleep properly (freezes, does not awake...etc) and it shows the following error when I run a test (no peripherals attached):
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Welcome to Apple Discussions!
Your repair should come with its own warranty--90 days I think. If you are still in the 90 day period, then both the sensor and the new hard drive should be covered. Very likely the plug to the sensor got dislodged during the repair.
If your warranty repair did not fix existing issues, then Apple has a policy of honoring the warranty until these issues are fixed. If they started with the hard drive replacement, then they should be covered by the 90 day warranty.
You could try resetting the SMC to see if this will help with the sleep issue:
http://support.apple.com/kb/HT1411?viewlocale=en_US
Also try a PRAM reset:
http://support.apple.com/kb/HT1379?viewlocale=en_US
I have read many recommendations to wait until the chime has sounded for a third time.
Freezing could also be due to software corruption. Make a good backup of your data, and try an Archive and Install to reinstall the OS.
Also, check the free space on your hard drive to be sure you have 15%-20% free.
There are a lot of steps that can be taken to determine what is going on, but the first one should be to go back to where you had the work done before your 90 day warranty is up.
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AHT Error 4SNS/1/40000000:Te2S-128.000

Hi,
I just ran the Apple Hardware Test on my Mac Pro (desktop) 4,1 with OS Snow Leopard.. and I had an error code which I can't find anywhere online on what error is it referring to. Do anyone know what is this error? How do I fix it?
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Only Apple really knows. Sensor for some type.
What are you using to monitor thermal sensors and the rest of the system?
Download Temperature Montor
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I could only find notebooks and they wree not that particular sensor code.

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I recently ran a diagnostics check after my macbook was recieving some problems. I got this error. After a quick google search, I couldn't figure out what it was. Could someone explain what this error means?
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That error code indicates a problem with the main logic board. Try resetting the SMC:
1. If the MacBook Air is on, turn it off.
2. Connect the power adapter to a working power source.
3. Press (left) Shift-Control-Option along with the power button once.
Note: Only use the keys on the left side of the keyboard.
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Thanks, I will try to take it to the Apple Genius Bar this week.
And I have 3 more questions:
How much will this sensor cost? is it expensive?
Is it a serious issue? Because when I run the hardware test, it only gives me this error in the short test NOT extended test.

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My MBP recently started freezing (to the point where the mouse wouldn't even move), so I ran Apple Hardware Test and it gave me the error: 4SNS/1/40000001:TN1D--1.000
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Total cost on that upgrade would be around $140 for both the 8gig and 1TB, ..... a Toshiba/Hitachi 1TB 5400RPM 2.5"
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I suspect you have hardware problem with a fan sensor. Doing a software install will not help the machine needs to be taken in for service. If you run Apple Hardware Test in Extended Mode it should reveal the error code. If it does not then run AHT an additional 2-3 times to be sure in Extended Mode. Each pass will take about 30-60 minutes.

IMac Loud Fan: getting error 4SNS/1/40000000:TCOH

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What the heck is that?

Your computer has to start from the Windows disc but it's not doing this. After creating the volume, make sure that the Windows disc is inserted, and turn on your Mac holding the Option (Alt) key, so you will see all bootable partitions. Choose the "Windows" option with a DVD, so the Windows installer will start and you must follow its steps.
If you need help installing Windows, follow the steps of this how-to > http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.8.pdf

Extreme Fan Speed (Error Code: 4SNS/1/40000000:Tp0P-131.000)

My 20" 2.4GHz Intel Core 2 Duo Aluminum iMac was purchased on 3/21/08 and it was perfect up until about the end of November. Now upon immediate boot up the CPU fan runs up to 3500 rpm for no apparent reason. At first this problem would only happen every now and then, but now it does it every single time. I've tried several things like reseting the PRAM and the SMC and that would work at first, but that doesn't do anything now. I ran the Apple Hardware Test and I got an error code (4SNS/1/40000000:Tp0P-131.000) when the fan was running at 3500 rpm, but when I ran the Apple Hardware Test when the fan was running at normal speed no error code came up. I recently took my iMac to an Apple Store and they looked at it and kept it for about a week and they said they could not find anything wrong with it and told me it was "normal" for the fans to speed up every now and then when it needs to cool down, but why would it need to cool down when I just booted it up and have no applications running? They told me that it could be a logic board problem or fan problem and they ordered the parts, but did not replace anything due to them not being able to find a problem. This problem has become extremely annoying cause the fan is quite loud and I absolutely loved the silence of the iMac when it was brand new. I don't have AppleCare, but my iMac is still under the 1 year warranty and I'm starting to feel that the only way Apple will do anything about this problem is if I purchase AppleCare. So has anyone else encountered this problem and if you have were you able to get it taken care of cause I'm getting extremely tired of this fan noise and I'm in desperate need of a solution.
iStat Screencap
http://i34.tinypic.com/213oqx3.jpg

I gave them the error code when I took it in and they just kind of shrugged it off and days later they called saying they ran several extended tests and were not able to detect anything wrong or reproduce my problem, but I remember the guy at the Genius Bar was able to reproduce the problem.

Hardware test error 4SNS/1/40000000: TB3T-128000, what does this mean?

hello,
I have a macbook aluminium 2008 2,4 ghz 8gb ram 120gb samsung ssd. since last week it has lots of kernel panics, so I did a clean install of osx mavericks, didn't work. Then I tried a hardware test and gave me an mem error (which has something to do with ram) so I installed the original ram bud after another hardware test it gave me this error: 4SNS/1/40000000: TB3T-128000, what does this mean?
thnksss

The precise meaning of AHT result codes is known only to Apple, however, SNS refers to a sensor and TB3T implies a fault with the battery temperature sensor.
Genius Bar Reservations

MBP 13" - 7,1 error: 4sns/1/40000000:tn1d-104.000

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