Smoke pump interference

  • Hi I'm looking for help regarding a smoke pump issue,

    The pump initialises fine and works with a variable flow output,

    My problems start when I start the engine, when flipping the engine over to start, the pump keeps initialising, when the engine is running the led on the pump keeps flashing green off red and dose not function, when the engine is stopped the pump works fine,

    I have changed the power supply to it and the cable from the receiver to it making no difference,

    Are there issues with mounting the pump near to an ignition (within 100mm)

    Thanks in advance for any help

  • Hi

    Ok after a lot of testing, moving the pump and changing wiring, I think I have found the source of the interference, I narrowed it down to the pb spark switch and changed it out for an rcxel switch and the problem seems to be cured, I will do a full engine test and let you know the outcome

    Thanks

  • Hi

    After many problem free flights the weekend, the Mercury gyro and smoke pump working perfectly, it's looking like I have a faulty spark switch, can it be sent in for test/ repair please as this unit has only had about 30 minutes of operation

    Thanks