1250

UnclassifiedCooling

What This Code Means

Reduced startability at temperatures below 12 °C (55 °F); Localized overheating of the fluid

Possible Causes

  • •Ambient temperatures below 12 °C (55 °F)
  • •Cold lube oil unable to flow sufficiently
  • •Cold weather / temperatures below 12 °C (55 °F)
  • •Heated fluid is not continuously circulated

Suggested Actions

  1. 1Do not use oil pan immersion heaters for heating lube oil
  2. 2Do not use oil pan immersion heaters for heating the lube oil
  3. 3Ensure heated fluid is continuously circulated to prevent localized overheating
  4. 4Ensure the fluid that is heated is continuously circulated
  5. 5Only use starting aid equipment recommended by Caterpillar to ensure component compatibility
  6. 6Use Caterpillar-recommended starting aids (Jacket Water Heater or Crankcase Oil Heater) when temperatures fall below 13 °C (55 °F)
  7. 7Use a starting aid (such as a Jacket Water Heater or Crankcase Oil Heater) at temperatures below 13 °C (55 °F)

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for 1250 on your specific Caterpillar unit — cited to the OEM manual, not a forum guess.

GET THE ANSWER

Free account required — we'll bring your question with you.