@donhradio posted:As an aside, what transformer are you using? If it's a ZW, you are drawing some serious current to cause it to trip. I don't think your replacement FET's would last long in that environment. With the board removed, you could (on a test stand/condition) measure the current your motor draws with varying voltage hooked up to it. Never having measured one on the newer DC "can" motors MTH used, I would still venture a guess that your motor should draw about 3 amperes at full throttle, and corresponding less at lower voltages. So whatever you measured at full throttle, is the worst case load you should experience with a working ERR Cruise Commander. Actually, the load with the CC at full throttle should measure a slight amount less than the directly hooked up motor. Not a lot less, just a little. There is negligible current loss due to the FET's.
Actually, 3 amps on a can motor that doesn't have a huge load is WAY too much! I haven't seen any of them draw anything like that.
I have a Pittman 9433F686 12V motor here, and at 12VDC, it's drawing 180ma with no load. A Mabachi RS-385SH clocks in at 120 ma, and the Mabachi RS-555 is running 240ma.
