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Got it. Great summary. Thanks. If only I had a responsive Speed control module, it would be great. i took my 2 old modules and stuck them under an incandescent light bulb for a week. They stayed nice and warm in hopes that any moisture inside the potting would find its way out. I know these...

Maybe I didn't drink enough coffee this morning, but where is this instruction sheet? I looked in the manuals and did not find anything.

I will check all my connections. From the above comments, I understand that the controller itself may be at fault. I read from the early posts that getting a new unit from the manufacturer was crazy expensive and you had mentioned building something yourself. Have you had a chance to pursue...

This started all of a sudden. The governor just appears to lose power and fall in between overriding the mechanical governor or shutting down. When in this condition, the magnet does not capture the target, and the governor does not override the mechanical governor. When I turn the switch to...

The mechanical governor and the plate are all in good shape. No loose parts. There seems to be an event, which causes the voltage on A/B/C to drop down to 150 volts. When that happens, the speed load regulator becomes unresponsive. Seems to happen more often in cold weather. I'm thinking...

Hello: Trying to diagnose my MEP-831a. I had this thing running like a top. All voltages at the speed controller were in spec. Suddenly, unit would not stop with the switch any more. Voltages at A/B, B/C, C/A read 152 volts. Engine runs slowly. No problem at the fault lights. This is an...