I doubt that the Park 400 took that kind of amp draw to shut down the ESC. Also cycling the throttle to cut off and back should have reengaged the ESC. This is speculation of course without knowing your gearing ratio and prop used.

The pack you have should be good to about 21 Amps current draw, but if for some reason the pack was not delivereing the required voltage, it might have tripped the Low Voltage Cutoff. This would be the first place I would look. If you have the USB interlink for the CC Ph25, I would check for correct settings. If you have the LVC in auto detect mode, I have seen these sensor fail to read the proper battery du to the pack not being at the right voltage when it was engaged. If you are flying nothing but 3S lipos with this ESC you may want to set it to 9.0V cutoff and be done with it. Also while you are at it, with the interlink, you can make sure your ESC has the latest software avialable to ensure that your ESC is running perfectly!

Another thing to consider is the type of charger you have. Without a readout of what MaH goes into the battery pack you generally have no way of knowing that the pack to the correct charge. I have seen some cheaper Lipo chargers fail to put on a full charge to the battery, and say it is full. With the last statement in mind, remember that a Lipo comes up to voltage very quickly during charge and that you have to maintain a constant voltage charge rate from there on in. As said before I have seen some chargers detect the voltage and then fail to keep putting in a charge. It tells you that it is finished charging and it is only 1/3 charged! If you don't have a good Lipo charger with a digital read out (Triton, Astro 109, or the like) you may want to invest in one!

Another item is with the battery. If for some reason you over discharged the pack, you will have a hard time getting it back to full capacity if you can ever get it back. If the pack has been charged and discharged a lot, it may be a sign that the pack is going bad and that you may want to look at investing in another pack.

One last thing, did you try to feel the ESC with your fingure. Was it hot?? Was the battery hot?? If you could hold either of them at the end of the flight, you are more than likely not tripping the heat sensor.

If you can give us some idea of the gear setup and prop used, battery age (number of cycles), and info about how you run the pack down (if you run it to the LVC all the time,) and ESC settings, we can give you a lot more help!


Hope this helps,

Reg


PS What type of transmitter and receiver are you using (QPCM?) Could you have taken a radio hit that sent a spike to the ESC?