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Bobcat S770 21-03 Error Code

21-03 Fault Code Meaning :

Glow Plug Error Off

21-03 Error Code

Glow Plug Error Off is the main cause of 21-03 error.To solve 21-03 locate and open the low-pressure valve, then attach the refrigerant to the valve and charge from there. Ensure you use the right refrigerant type and amount, as specified by a manufacturer. It is possible to overcharge the AC, so consider seeking help from a mechanic.

Bobcat S770 Photo

Tip For S770 Model

It is recommended in cold weather to cycle the glow plugs twice before attempting to start the engine. This will allow for additional heating time for cold weather starting.

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Bobcat Error Code

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