BLF GT70 PROBLEM...(FIXED)

[Brainsick67]

- YouTube

Well…its 25 degrees here .i went out…after 45mim a turned on the light, it kept steeping down in 5 sec from Turbo,everything was correct with the batteries…got home…then work after 15min after i got home…then i left it outside for 25min…brought back in…it did the same.so it seems it doesnt like the cold…this shouldnt happen with this light…

[ZozzV6]

Cracked solder? I would reflo the driver.

[Brainsick67]

@ZozzV6

Cracked solder? I would reflo the driver.

Thanks .but dont know how
.ive ony used the light 2 times.lol…but it has to do with the cold.

[ZozzV6]

Cracked solderings can do things like that when cold the part shrinks and doesn’t connect. But it could be even a cracked resistor or capacitor.

[BlueSwordM]

Is it possible for thermal regulation to be completely borked with low temps?

Did you try removing thermal regulation altogether or not? Could not piece it in the video.

[Brainsick67]

@ZozzV6

Cracked solderings can do things like that when cold the part shrinks and doesn’t connect. But it could be even a cracked resistor or capacitor.

Hmmmm…thanks for that.

[Brainsick67]

@BlueSwordM

Is it possible for thermal regulation to be completely borked with low temps?

Did you try removing thermal regulation altogether or not? Could not piece it in the video.

I didnt try that…its set from the factory…i didnt mess with it.

[BlueSwordM]

Try disabling it altogether. If it steps down again, then Zozz’s explanation might be it.

[ZozzV6]

@Brainsick67

@ZozzV6

Cracked solderings can do things like that when cold the part shrinks and doesn’t connect. But it could be even a cracked resistor or capacitor.

Hmmmm…thanks for that.

On that driver the heat sensor is inside the Atmel microcontroller. Mayba that controller’s sensing part can be faulty too. Try to blink out temperature when light cold and making the problem and blink out temp when it works fine. Maybe this give some clue.

[Brainsick67]

@ZozzV6

@Brainsick67

@ZozzV6

Cracked solderings can do things like that when cold the part shrinks and doesn’t connect. But it could be even a cracked resistor or capacitor.

Hmmmm…thanks for that.

On that driver the heat sensor is inside the Atmel microcontroller. Mayba that controller’s sensing part can be faulty too. Try to blink out temperature when light cold and making the problem and blink out temp when it works fine. Maybe this give some clue.

Thanks man…what do you mean by blink out?

[ZozzV6]

@Brainsick67

@ZozzV6

@Brainsick67

@ZozzV6

Cracked solderings can do things like that when cold the part shrinks and doesn’t connect. But it could be even a cracked resistor or capacitor.

Hmmmm…thanks for that.

On that driver the heat sensor is inside the Atmel microcontroller. Mayba that controller’s sensing part can be faulty too. Try to blink out temperature when light cold and making the problem and blink out temp when it works fine. Maybe this give some clue.

Thanks man…what do you mean by blink out?

Narsil can tell you the temperature what the driver thinks it is measuring. If it give you a high number when cold then it measuring badly. Triple click from Off then it blinks battery voltage. And make a doubble click from battery check. Then it blinks out temperature in celsius. First tens then singles. Count led blinks. 24 looks like 2 blinks pause and 4 blinks bigger pause and repeat.

[Brainsick67]

@ZozzV6

@Brainsick67

@ZozzV6

@Brainsick67

@ZozzV6

Cracked solderings can do things like that when cold the part shrinks and doesn’t connect. But it could be even a cracked resistor or capacitor.

Hmmmm…thanks for that.

On that driver the heat sensor is inside the Atmel microcontroller. Mayba that controller’s sensing part can be faulty too. Try to blink out temperature when light cold and making the problem and blink out temp when it works fine. Maybe this give some clue.

Thanks man…what do you mean by blink out?

Narsil can tell you the temperature what the driver thinks it is measuring. If it give you a high number when cold then it measuring badly. Triple click from Off then it blinks battery voltage. And make a doubble click from battery check. Then it blinks out temperature in celsius. First tens then singles.

Ohhh ok…i will try it now…then leave the light outside for a bit.

[Brainsick67]

I think it was 3 blinks…then 5 more.

[hank]

Maybe a weak battery draws the voltage down so low the light shuts itself off?

[ZozzV6]

That is 35C or 53 if you read the two numbers wrong order which is about human body temperature. Do you feel lightly warm or the light was completely cold? Or 53C if you read the two numbers wrong order but that feels hot What it blinks out inside when warming up?

[Brainsick67]

@ZozzV6

That is 35C or 53 if you read the two numbers wrong order which is about human body temperature. Do you feel lightly warm or the light was completely cold? Or 53C if you read the two numbers wrong order but that feels hot What it blinks out inside when warming up?

i dont think im doing it right
…

[Brainsick67]

I think i got 61…6 fast blinks and 1 short one…light is in my room…so not cold or hot.

[netprince]

Its got to be borked thermal regulation… I’m trying to find the gt70 manual… seems many of the links have stopped working…

[Brainsick67]

@hank

Maybe a weak battery draws the voltage down so low the light shuts itself off?

They are all good…

[Brainsick67]

@netprince

Its got to be borked thermal regulation… I’m trying to find the gt70 manual… seems many of the links have stopped working…

It could be…i could set thermal to off.