Kubota E:015 – LCD Display / Meter Panel: Engine Overheated

The machine is overheated. The engine coolant temperature has become elevated or reached the boiling point. The system triggers a warning lamp and displays the code to warn the operator that the machine must cool off by idling.

• KX016-4
• KX018-4
• U15
• U17
• U27-4
• U50-5S
• KX080-4
• SSV65
• SSV75
• SVL65-2

1. 1

   Perform safe shutdown procedure: Stop operation, disconnect the engine's load, and idle for about 5 minutes to allow coolant to circulate before turning off the engine.

2. 2

   Wait at least 10 minutes or as long as steam is emitting to prevent severe burns before inspecting.

3. 3

   Inspect the radiator and screens for clogging from grass, dirt, or debris that could prevent proper airflow.

4. 4

   Check the coolant level in the radiator and the reserve tank, and inspect hoses and the water pump for visible leaks.

5. 5

   Check the V-belt (fan belt) for proper tension and condition, as a slipping or broken belt will stop the water pump and fan.

6. 6

   Inspect the radiator cap to ensure it is holding pressure properly.

7. 7

   If the coolant level is fine and the radiator is clean, check if the thermostat is stuck closed.

1. 1

   Clear Blockages

   Unclog the radiator fins and surrounding components using compressed air or water (once the engine is completely cold).

2. 2

   Refill Coolant

   If the machine boiled over, refill the radiator and reservoir tank with the proper mix of Kubota genuine coolant and distilled water. Do not use straight water or unmixed antifreeze, as improper mixtures can cause overheating and corrosion.

3. 3

   Replace Radiator Cap

   If the cap is faulty or not holding pressure, remove and replace it with a new OEM cap.

4. 4

   Replace Thermostat

   If faulty, drain the engine coolant. Locate and remove the water flange/thermostat housing. Remove the old thermostat and gasket. Clean the mating surfaces. Install the new thermostat and a new OEM gasket seal. Reinstall the housing and torque the bolts to spec. Refill the cooling system, bleed any air from the lines, and test run the machine to ensure the E:015 code does not return.