IF the Motor works fine under a "Dry" test, then really the ONLY place a "Fault" can be is with the controller/switch, these type of units. due to the current they control can Fault very quickly and for no apparent reason.
The controller basically works by passing controlled current to the Motor, if NO current is entering the Motor, yet current IS entering the Controller, then it MUST therefore be the actual controller....
Usually it is the "Output" semiconductors that fail, but occasionally it can be the Micro in charge...
There is no "Repair" as such with these types of controllers, mainly due to the fact that with, "Mission Critical" devices, even a professionally repaired unit, has a higher likelihood of failing again in the very near future, so replacement is the usual way to go... As due to the stresses involved whenever a device like this fails, the co-lateral damage done, and stress on "Other" components makes long term successful results unlikely.
Most new things are deemed replace only non-repairable because they are completely sealed to prevent moisture and or dirt from contaminating the very sensitive components inside. Most are assembled in clean rooms by robots more sterile than operating rooms because even the moisture from breathing can cause shorts and corrosion, because safeguards for them on each component requires more voltage run, creating more heat which in turn needs more space and engineering to deal with... you see where I'm going.
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Thank you. I thought there was probably no repair solution after Horizon Hobby's response. I will replace with a new one.
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