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Bobcat S220 D9403 Error Code

D9403 Fault Code Meaning :

Trailer Brake Supplementary Line Relay Error Off

D9403 Error Code

Trailer Brake Supplementary Line Relay Error Off is the main cause of D9403 error.To solve D9403 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 S220 Photo

Tip For S220 Model

The overload warning device (if equipped) senses hydraulic pressure in the boom lift circuit. When the hydraulic pressure in the boom lift circuit reaches a predetermined pressure setting, a buzzer will sound that indicates an overload condition.

If the buzzer sounds, immediately move the arm closer to the excavator and lower the boom. Reduce the size of the load before attempting to re-lift the load.

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Bobcat Error Code

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