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If power indicator light red and warning indicator red flashing than according to user manual :-
The projector has been cooled down enough and the temperature returns to normal. When turning ON the projector the WARNING indicator stops flashing. CHECK AND CLEAN THE AIR FILTER.
Experience:- 1. if the temperature is very low than temperature sensor maybe misbehave.
2. If anyone fan not working
so please you check fans.
(If lamp or lamp ballast unit faulty than after a time period the lamp indicator light ON not a warning indicator. I experience many times if any fan in projector are broken or jamed the temperature light if present otherwise warning light ON or flashing)
Ok, there are several things to consider. First of all, don't use standard alkaline batteries, the flash needs a lot of power and will drain those quickly. Use either lithium batteries (most powerful non-rechargeable) or invest in NiMH rechargeable batteries. Those would be your best choices for AA's. Now to your flashing red lights - on the Speedlight flash they fulfill 2 functions, one is as auxiliary ready lights (if used as wireless remote flash) but the blinking in your case points to their other function - it blinks 3 times to indicate possible under exposure of your photos at maximum output level. It's basically telling you that the flash was not strong enough to properly illuminate the scene you tried to shoot. That doesn't necessarily mean the batteries are going flat, but you could simply be out of range of the maximum flash power. Your flash has a guide number of 30 - that means at a zoom head position of 35mm (if your lens is at 35mm) and your ISO is 100, then the maximum range of the flash is 30m (approx. 68ft). If your subject is further away, you would get an underexposure warning (3 blinks of the ready lights). Hope that helps explain some things.
In commander mode, the onboard flash must flash. How else would it communicate with your slave flash(es)? Depending on your settings, almost all of the communications can be done before the picture is taken.
Is the onboard flash negatively impacting your photos?
Try reseting the flash itself, press and hold the "Mode" and "on/off" buttons together for 2 seconds approx...this should reset the whole flash.
If that doesn't work try unlocking it by pressing the "on/off" and "Sel" buttons together, the padlock should disappear.
With respect to the corroded contacts you just need to try and clean them as best you can...but it sounds like you have really bad contact with the battery and hence a serious voltage drop, hence the dim display and lack of the red ready light.
Try this: 5. If “AIR BAG” warning lamp operates as [as I said before], turn ignition switch “OFF” to reset from Diagnosis mode 1. Turn ignition switch “ON”. 2. After
“AIR BAG” warning lamp lights for 7 seconds, [i.e. when it stops
running solid and starts flashing] turn ignition switch “OFF” within 1
second. [DO NOT SWITCH IT TO LOCK, SWITCH IT TO ACC] 3. Wait more than 3 seconds. 4. Repeat steps 1 to 3 two times. (Perform 3 times in total.) 5. Turn ignition switch “ON”. SRS is now in Diagnosis mode. Try
it a few times. If you can't get it to work, have someone else try. If
you STILL can't get it to work, check your battery voltage. It might be
low. In diagnosis mode, you're going to hope the light flashes
slowly. 2 seconds off, 3 seconds on, and repeats. If your light does
this, this means that the computer detected a previous error that
hasn't been erased. This is good. to User mode and to erase the memory of the malfunction. 6. Turn ignition switch “ON”. “AIR BAG” warning lamp operates in User mode. [it should stay on for 7 seconds, then go off, like normal.]
It may be that the temperature of the unit is not yet up to temp.The flashing light will indicate this.Warning the user the unit is not ready,or up to safe temp.. Let the unit run to catch up,since you just started it.
Not to buy a Nikon Coolpix anymore. This is a very bad camera. I had this same error last year. The camera was sent to Japan once, returned to me and worked for six months. Now is the same problem: SB light in red doesn't let me take pictures in light conditions when flash is needed. So, you'd better think in buying a camera, not Nikon, please. JAMP Havana, Cuba