I am having trouble with my Skywriter. I have only put one tank through it and now it wont pump. I have taken the check valve off and the crap trap as well and just ran regular lines trying to pump water through it and nothing. I have also filled the tank with water and put the cap on the fill then blown in the vent to try and prime the pump. There is water coming in and going out the pump with no bubbles and still no pumping. It comes on and sounds just like it did when it was pumping. I am at a loss and am really hoping that there is something simple that someone can point out to me that will make this thing work again. If not i will be calling Sullivan in the morning. Any ideas

Flyboy76

Flyboy,

Keep me\us posted on what you find with this. I purchased one of the Sullivan programable pumps for a project I'm not yet completed with. Would be interested in hearing what you find on this for future knowledge. Thanks, Greg

I have a different problem with mine. I have a 14 channel Futaba, of which the reciver pack is 6volts. My skywritter is set up for 9.6 volts. When I hook up the pump to the battery my reciever glitchs like crazy. I called Sullivan and they tell me it is rare but known to happen. There is no cure, but running the pump at the same voltage as the reciever may help. I have not tried that yet, but I did install a power expander and regulator for the reciever which they also recommend with no change. The glitching is major but not always percieveable, depending on radio location from the plane.. about 20 feet or so with antenna fully extended. (it only glitchs with antenna out)

Regards,
Randy

I was under the impression that you were supposed to supply a seperate power source for the smoke pump?

I just read my instructions for the super smoke programmable pump, and it says to provide a battery supply of 4.8V, 6V, or 7.4V Li-Po................9.6V ?

Run a seperate power source JUST for the smoke pump, NOT through the expander and let me know what you get, I'm guessing\hoping that will solve the issue ....or am I mistaken? ....... Greg

I just got my skywriter and have it plugged into a berg 7 reciever with the same glitching problem, did anyone ever find a solution?