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Overheat light



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Rampage
PostPosted: Jan 19, 2004 - 12:44 AM Reply with quote Back to top
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I replied to a post at Frugalsworld about the overheat light but I didn't know the exacts. Does anyone know how hot the fire loops have to get for the overheat light to come on? And also when will the fire light come on?
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mark
PostPosted: Jan 19, 2004 - 01:37 AM Reply with quote Back to top
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Which one are you looking for? The overheat or the fire loops? They are 2 seperate elements. IIRC overheat is 700 degrees and fire is 1200.
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STBYGAIN
PostPosted: Jan 19, 2004 - 03:55 AM Reply with quote Back to top
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The fire light temps depend on the motor.

The overheat caution light is lit up by an overtemp in the engine bay, ECS system, EPU, or MLG wheel wells.
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mark
PostPosted: Jan 20, 2004 - 02:35 PM Reply with quote Back to top
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My bad. After checking out the 26GS I gave some erroneous info. Fire light is tripped by temps of 765 deg F +- 5 (engine has no bearing on the temp). Overheat is 575 +-5. Keep in mind this is for the fire and overheat detection loops and not the FTIT gage temps.

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mark
PostPosted: Jan 20, 2004 - 07:29 PM Reply with quote Back to top
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Perhaps I should clarify that a bit more. An internal engine fire (inside the actual engine) will also light the engine fire light and that one depends on the actual type of engine, but I got the impression that the original question had to do with the fire/overheat detection elements which sense an bay fire or overheat.

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Rampage
PostPosted: Jan 20, 2004 - 07:46 PM Reply with quote Back to top
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mark wrote:
Perhaps I should clarify that a bit more. An internal engine fire (inside the actual engine) will also light the engine fire light and that one depends on the actual type of engine, but I got the impression that the original question had to do with the fire/overheat detection elements which sense an bay fire or overheat.


I was refering to fire/overheat detection elements which you answered in your second post. Thank you.

I'm an engine guy and I know the the P&W have no way of tripping the fire light. Must be GE's.
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mark
PostPosted: Jan 20, 2004 - 08:15 PM Reply with quote Back to top
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Your right Rampage.....internally it would be an overtemp condition and give an engine warning light, not an engine fire light.

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