OVERTEMP FAULT

UnclassifiedElectrical

What This Code Means

Engine fails to start; Low cranking voltage; Slow warmup; Hunting idle

Possible Causes

  • Battery failure
  • Coolant pump failure
  • Thermostat failure
  • Fuel regulator failure
  • Gas valve failure

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for OVERTEMP FAULT on your specific Rehlko unit — cited to the OEM manual, not a forum guess.

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