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So a quick update, I ran the generator all day yesterday keeping an eye on it. The radiator burped out about 12 oz of coolant through the tube at the radiator cap. My guess is there was an air bubble in the system. It is showing about 20 degrees cooler on the gauge and I have not had the...

I took a look and there is the remains of a sticker on the gauge but I can't see any writing on it. I did fire the set back up this morning and it has run now for 9 hours and has not set the coolant high temp fault light. The gauge is showing around 200-220 like yesterday. When I get power...

Hi everyone, thank you for the replies and help. I am going to borrow an infrared thermometer tomorrow to do some further testing. Guy, thanks for the switch info, I did not come across that yet. FSK, I have what I believe to be an OEM temperature gauge. It did show 180 degrees earlier when...

Thanks Ray, I will give that shot when the power is back on. I have been running the unit for a few hours this afternoon and the temp gauge is around 200-220. The fault light is on but I have it in battle short mode. I am 99% sure that the temp sensor is the problem. In looking at the TM I...

I have done a little more troubleshooting, daylight is a nice thing to have. I started the generator up and flipped the battle short switch. Then I shut most of the load in the house off and closed the circuit breaker. Generator is running about 25% utilization. A few minutes later the...

Thanks Toolslinger! I am still going through the TMs to see if I can track anything else down that might help. My guess is that 180-200 would be the normal operating window.

Ok, I have an update. I fired the generator back up this morning after sitting all last night. Current temperature is 33 degrees and it was down around 20 degrees over night. The generator ran for 10, maybe 15 minutes and shutdown with the high coolant temp fault light on. The catch can has...

I just purchased a used MEP-802a and am getting a coolant high temp fault light after four hours or so of use. At that point the generator shuts itself off. Currently the unit is being used to power a house since we will most likely not have power restored for another week. High loads such...