Hot cooling system

Are the fans running on low or high ?
Circuit/System Description
The engine control module (ECM) commands the fans ON in either high speed or low speed, depending on cooling requirements. In low speed, both fans are turned ON at a reduced speed. High speed has both fans turned ON at full speed.
In low speed operation, the ECM applies ground to the coil side of the fan low relay. This energizes the coil and applies voltage directly to the left cooling fan through the switch side of the fan low relay, which is fed by the fan 1 fuse. The right fan is connected in series to the left fan through the de-energized fan control relay so that both operate at low speed.
In high speed operation, the ECM applies a ground to the coil side of the fan low relay, the fan control relay , and the fan high relay. On the fan high relay, the energized coil closes the switch side of the relay and applies voltage directly to the right cooling fan through the switch side of the relay, which is fed by the fan 2 fuse. At the same time, the ECM energizes fan control relay pulling the switch side over, providing a direct path to ground for the left cooling fan, which has voltage applied through the energized fan low relay. In high speed mode, the fans are operated as a parallel circuit with full voltage applied to each.
You should have it hooked up to a scan tool that can read engine sensor data parameters . Check for DTC'S - diagnostic trouble codes etc...
Circuit/System Verification

1. If DTCs P0480 or P0481 are set, perform those diagnostics first.
2. Ignition ON, verify with a scan tool that the control module is not commanding fan activation.
3. Ignition ON, observe that the fans are not activated.

Your best bet is to take it to a ASE certified repair shop !

What jim said is right. plus clean the front vent. take off bottom front panel and clean all the little round holes. also if its dirty inside everything runs hotter(which makes the EC get warm faster) and dirt gets on the little wire(it's about 4" long coming from the main 40 pin connector0 that monitors the EC temp(clean it). sometimes the fan starts to get weak and doesn't cool properly. also, unplug oven, take side panel off and clean it as well. there are vents on it that get clogged. while it's unplugged clean the inside. I use a paint brush and shop van. just be careful not to hit wires or knock wires off. this will all help a bit but that fan will still run a lot anyway.

Hi,
Check the ignition timing.
Make sure the fuel you are using is specified for engine use.
Last one will be to check the catalytic converter if it still open.

Hope that helps!

This sounds like an overheating problem between the processor and graphics card. There's not a whole lot to do except consider using a laptop cooler (sits underneath the laptop), or if you feel confident enough to take it apart, and clean the dust away from the ventilation ports and fan.

It could also be the video card is going bad, as it sounds like it is crashing due to a hardware failure, which could be overheating, motherboard problem possibly, etc.. I suggest if you have warranty on the laptop to send it in for repair.

Welcome to Fixya

If the machine is hot to touch then the fan might not be working properly at full speed. If the processor or the board gets hot then the hanging issue may occur. Possible worst scenario is the system will shutdown on its own. I suggest you take a look at the system Fan it might need cleaning or replacement. You may contact Lenovo support at 18774536686 then press option 2.

Let me know if you have further questions.

Thank you for using Fixya!

If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b

"EC 50" means excessive refrigerator compressor run time. What is the serial number? Is the condenser fan running? Can you feel airflow from the left side up top? Is the strip between the fridge and freezer hot to the touch?

A large percentage of the time, this issue is directly related to the laptop is overheating.

Specifically the Processor. When the Processor becomes too hot, (Goes past it's Thermal Limit), it turns off.
This is a Fail Safe feature that is built-in, to keep the Processor from burning up.

The reason the Processor is overheating;

1) The inside of the laptop is dirty.
The hardware components inside a laptop are cooled by air.
There is a small Cooling Fan which draws air into the Air Intake Duct.

Foreign material such as Dirt, Dust, Hair, Food Crumbs, Lint, and other objects collect on the Cooling Fan, and in the Air Intake Duct.

The Air Intake Duct leads to a Cooling Tube, which in turn leads to a Heatsink.

A typical Heatsink is composed of a flat metal plate, which has tall fins protruding from it.
Heat is absorbed by the flat plate, and into the tall fins. The fins absorb the heat, and radiate it out.

Air drawn in by the fan, flows through the spaces in-between the fins, and carries the heat away.

The Heatsink is attached to the Processor, and may also be attached to the GPU.
(Graphics Processing Unit)

Once the Air Intake Duct, Cooling Fan, Cooling Tube, and Heatsink are clogged with the 'Gunk' mentioned above, the cooling capacity of the cooling system drops tremendously.

Solution is to remove the AC adapter (Charger), and the Battery.
A can of compressed air for computers is used, and the Air Intake Duct, and Cooling Fan are cleaned out with the air.

(Be SURE it is the intake side, and not the exhaust side. If you blow air in the exhaust side, you will be pushing the gunk back in, not removing it.

Your Air Intake Duct is on the bottom of the laptop, in the circular grille shape)

Attach the plastic straw to the can of air's nozzle.

Hold the laptop up on it's Left side, and the back facing you, on a towel placed on a table, with one hand.

Use the other hand for the can of air, and bring the plastic straw about a finger length away, from the Air Intake grille opening.

Use Short Bursts of air, as you are real close to the Cooling Fan. If you use a long burst of air, you may spin the fan faster than it was designed for, and cause damage to the fan's bearings.

A Short Burst of air is squeezing the trigger in all the way, then letting go.

Start at one side of that round opening, and go across to the other side. Come down in rows as you proceed.

After you are satisfied that the Air Intake Duct, and Cooling Fan is clean, lay the laptop down in it's normal position.

Prop the Left side up with a book on it's side, for about 10 minutes.
This will allow any moisture that may have been caused by the can of compressed air, to dissipate.

Now remove the book, reinstall the Battery, and plug in the AC adapter.

This link shows you - Disassembly of a Toshiba Satellite L355, or L355D laptop.
It is not an invitation to disassembling your laptop, I just want to show you the hardware components, I've been referring to above.

(It's part of the Toshiba Satellite L300 series of laptops)

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L355D/laptop-disassembly-1.htm

Step 1 shows you the Air Intake Duct grille, and the Cooling fan under the grille. The round opening on the upper right side.
You can left-click on the photo to enlarge it.

The page numbers are on the bottom of the page.
Page1::Page2::Page 3::Find another model

Click on Page 2
Step 9 shows the Keyboard removed, and the top of the Cooling Fan.

If the above solution doesn't cure your problem, the laptop may have to opened up to this state, and the fan blades, and surrounding shroud, cleaned out.

You may feel this is beyond your ability. In any case, I am showing you what the computer repair tech will be doing.

The repair tech will be using a small soft bristle brush to dislodge the heavy gunk, then a can of air is used.

Q-tips can be used in a pinch to substitute for the brush, then short bursts with a can of air are used.

Page 3, Steps 16, 19 and 20 give you a bottom view of the Cooling Fan, and the shroud that surrounds the fan.
Step 20 shows you the Cooling Fan, the Cooling Tube, and the Heatsink.

The curved copper colored tube is the Cooling Tube.
There are two Heatsinks used.

One is at the left side, that has two screws circled in Red. Has a V shaped piece of metal on top, and an upside down V shaped piece of metal on bottom.
This Heatsink is for the GPU.

To the right of this Heatsink is another Heatsink with two screws circled in Red.
This is the Processor heatsink.
The Processor is underneath this Heatsink.


2) The laptop's Air Intake Duct opening is blocked.
The Air Intake Duct opening is on the bottom of the laptop.

Laying the laptop on your lap can block this opening.
The cooling capacity of the cooling system drops, the Processor overheats, and turns off.

Laying the laptop on a bed, couch, or directly on a carpet floor, can have the same effect.

3) The cooling system for a laptop is very inefficient.

All of the hardware components of a laptop are crammed into a small box, and a small fan is used to keep them cool.

To help the cooling system you can use a laptop cooler pad.
The cooler pad has fans built in it's base. Most are powered by plugging into a USB port on the laptop.

Below are a few examples. (Not an advertisement for the manufacturers, or the website)

http://www.coolerguys.com/noco.html

which side of the laptop is getting hot?
if it is the left side, check the bettery. it may need replacement.
if it is the right side, then the HHD need is on its way out, better backup all your files NOW and get a new hard drive.

the hot thing is normal be alarm when is not hot the condenser coils run on side of walls so is normal the ec means the board under the unit is not comunicating with the display on door it means error comunicating 2 things could be wrong 1 the board is bad need to be repl 2 there is a broken wire inside door. lastime i fix this i order both door and board but i tried the board first and it work so take a chance unles you have any type of warranty then call a tech

what is the EC #? That will tell you where to look. It should cycle EC then say a 2 digit number. Is the frideg cooling at all? Also check the back wall down the left side and see if there is any ice there. Last, feel around the door opening where the door seal meets the cabinet and see if the cabinet is hot. If it is, check to see that your condeser up top is clean and that the fan up there is running when either one of the compressors is running. Any ore info you could give would be helpful in diagnosing your problem. post back and maybe we can figger it out. Good Luck!