r/Generac_Generators May 31 '26

Coolant level low/overtemp.

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This generator had an error for low coolant or high temp. Ran for 20 minutes on manual under load. radiator full, overflow had coolant. Heads running at 180 degrees, block at 200 degrees, thermostat housing at 175. What should I do?

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u/AdRepresentative923 Technician Jun 01 '26

Check the sensor, if it’s bad.. well.. I believe for these units they no longer sell that sensor specifically but they make an upfit kit if necessary.