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Have you adjusted the settings on the SLC10 Governor Control Module per the procedure in the TM? That being the GAIN, BOOST, STABILITY & SPEED adjustments on the Governor Control Module.

As suggested I let the 831 sit un-used for about 3 weeks in the garage. Wheeled it outside today, fired it up and it started and idled properly. Let it warm up for a few minutes, no surging at all. I then applied a 3,000 watt load to it (two 1,500 watt heaters). As expected the RPM's went up to...

Good point. Reverted to toggling the heaters off and on for the remainder of the hour long run. Controller behaved perfectly for the run. Smooth RPM increases and decreases based on the load applied. Will do additional tests in the coming days and weeks and will post updates. Will be letting...

Re-installed it, started the unit, tuned it per the instructions and it's working perfectly so far. Currently running it with a 3K load and periodically opening and re-closing the contactor to be sure it throttles up and down smoothly without surging or hunting. So far so good at about 20...

Just put a new SCL100 in one of my 831A's with a faulty governor controller. Found I had to back the Gain off a bit more than specified as it would idle down really low when dropping the 3K load and then surge back up just before stalling. Once I backed off the Gain it idled down smoothly when...

If the target is off the magnet the set will start/run for a bit regardless of the position of the RUN/STOP switch. One of my 831's wouldn't shut down even with the switch in the STOP position because of a No Fuel fault. With a No Fuel fault power is dropped to the governor controller.