Bobcat S510 P20B3 Error Code
P20B3 Error Code
DEF Tank Heater Valve Short to Ground is the main cause of P20B3 error.To solve P20B3 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.
Tip For S510 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.