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FS737Pilot

Window heat "ON" lights won't stay on

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The window heat lights in my NGX won't stay on. They will randomly turn off and on. There is no failure indicated, there is no overheat, there doesn't seem to be anything going on. This issue has only been happening in probably the last month or so. I think it may have happened to me before any of the Service Packs came out, but then it was resolved. Now its randomly acting up again. Any insight?

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The window heat lights in my NGX won't stay on. They will randomly turn off and on. There is no failure indicated, there is no overheat, there doesn't seem to be anything going on. This issue has only been happening in probably the last month or so. I think it may have happened to me before any of the Service Packs came out, but then it was resolved. Now its randomly acting up again. Any insight?

They are maintaining their temperature by flipping on and off to keep 'em toasty. Don't sweat it- it's normal and just like the heater that you use in your house during the winter.

 

You're probably just seeing it because now it's into summer and warmer temperatures.

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They are maintaining their temperature by flipping on and off to keep 'em toasty. Don't sweat it- it's normal and just like the heater that you use in your house during the winter.

 

You're probably just seeing it because now it's into summer and warmer temperatures.

 

oh ok that would make sense. I thought they always remained on while the switch was on (unless an overheat). I guess this characteristic would happen more on hot days?

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oh ok that would make sense. I thought they always remained on while the switch was on (unless an overheat). I guess this characteristic would happen more on hot days?

Exactly- do a flight out of Tuscon when it's a 40C day and you could probably turn them on during pre-flight and they would go off within minutes.

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Exactly- do a flight out of Tuscon when it's a 40C day and you could probably turn them on during pre-flight and they would go off within minutes.

 

so what would cause an overheat? Also, does the overheat have to be set up in the failures menu, or would being out on a very hot day trip it?

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so what would cause an overheat? Also, does the overheat have to be set up in the failures menu, or would being out on a very hot day trip it?

Probably a failure of a temperature sensor. I'm sure there are others, but I can't think of any off the top of my head. I use serviced based failures, so I'm just waiting for an overheat.

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A quick change in the outside temperature when window heat is supplying power could give you an overheat but it is something that is difficult to reach. If you want to test the overheat function just use the test switch to power test, this will power all the heaters until overheat come on. Do not use power test if the windows are warm or the outside temp is high.

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The lights extinguish when the system is at the correct temperature

Did you not read any of the replies? (Or the forum rules?)

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Did you not read any of the replies? (Or the forum rules?)

 

Sorry I don't understand what's the problem, I read replies and forum rules, I only gave my opinion about the problem reported in the question

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Hello everyone, I have just recently started seeing this too. My question is since I departed KLAS today when the temperature was about 41 degrees celsius, now that I'm at a cruising altitude I'm at -15 degrees the window heat which remained in the on position still hasn't turned back on. Does anyone know how long it takes for the windshield to decrease to such a temperature to cause the window heat to re-engage?

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It all depends on the temperature and enviornmental conditions. Remember, as an aircraft travels faster through the air, it creates heat.

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In the real airplane they usually turn back on continuously pretty quickly after you are airborne. Actually in eleven years I have never seen them cycle off while airborne. In your situation at -15 they should definitely be on. I think I read another thread about this. If I recall correctly they got it to come back on by cycling the related window heat switch off then on.

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Thanks Tom and Nick for your guys' insight. However Tom do you believe that a ticket submission to the dev team about this is in order? Perhaps something for SP2 they can look into after the triple seven's release.

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File a ticket for sure. I think it's warranted and just a good little fix to help with that immersion.

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Guys, if Tom says it's wrong we'll look at it for SP2 - he flies the airplane, so can't argue with that.

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Just had this situation after takeoff from hot Milan. Window heat went back to on after 5 minute cruising at TAT -20* without recycling or PWR test.

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I've observed the window heat behavior a bunch in the real plane at the gate and in flight. I am typically focused on other things during taxi and takeoff though. I thought I was going to get a good chance to see when the heat comes back on continuously in Chicago yesterday but just as we started taxi a thunderstorm came over the airport and cooled everything down so the heat went continuous. I'm back in Chicago today and it's just as hot so I will see if I can determine exactly how soon the heat goes continuous. I have never seen the heat cycled off in flight but I don't usually get a chance to check until we are at cooler altitudes. I'll compare what I see to NGX and report back.

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I've observed the window heat behavior a bunch in the real plane at the gate and in flight. I am typically focused on other things during taxi and takeoff though. I thought I was going to get a good chance to see when the heat comes back on continuously in Chicago yesterday but just as we started taxi a thunderstorm came over the airport and cooled everything down so the heat went continuous. I'm back in Chicago today and it's just as hot so I will see if I can determine exactly how soon the heat goes continuous. I have never seen the heat cycled off in flight but I don't usually get a chance to check until we are at cooler altitudes. I'll compare what I see to NGX and report back.

 

Is your mail drop B-103 (ORD crews) down at K-19? If so then I deliver your mail along with everyone else's down at flight admin.

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Naw, I'm based in LAX. I was based at ORD back in 2000 though.

 

Of course I had the perfect opportunity to check it out departing ORD but it was my leg and once we started the takeoff roll I totally forgot to watch the window heat until we go to cruise. I'm going to Orlando tomorrow so I will likely get another opportunity to check seeing as it's always good and hot there.

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Well it was a little too cool in Orlando. Some storms had passed and there were also periods of no direct sunlight. In typical fashion I remembered to check the window heat during takeoff but they were all already on. One thing I have observed about the window heat cycling is that it is usually the windows on the sunny side of the plane. In fact I rarely see the heat cycle back on while on the ground when that is the case. I have no idea how they could program NGX to recognize the sunny side of the plane but hey I'm not a programmer so I don't know how they program any of it. Something thing I have noticed in NGX is that when the heat cycles on and off it happens way more frequently than in the real plane. In the real world it tends to stay off for a long time. I am getting obsessed with figuring this out so I will stay on it. Theres still lots of summer left to find some good hot weather.

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I've observed the window heat behavior a bunch in the real plane at the gate and in flight. I am typically focused on other things during taxi and takeoff though. I thought I was going to get a good chance to see when the heat comes back on continuously in Chicago yesterday but just as we started taxi a thunderstorm came over the airport and cooled everything down so the heat went continuous. I'm back in Chicago today and it's just as hot so I will see if I can determine exactly how soon the heat goes continuous. I have never seen the heat cycled off in flight but I don't usually get a chance to check until we are at cooler altitudes. I'll compare what I see to NGX and report back.

 

 

Just tell the captain you cant do anything else on this flight because you have to compare the window heat behavior to the NGX..

 

If I turn on the news and see a pilot being taken off a american 738 like that poor jetblue pilot was taken off then I know you tried this.

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Just tell the captain you cant do anything else on this flight because you have to compare the window heat behavior to the NGX..

 

If I turn on the news and see a pilot being taken off a american 738 like that poor jetblue pilot was taken off then I know you tried this.

 

Troll much?

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