Bobcat S770 P20B4 Error Code
P20B4 Error Code
DEF Tank Heating/Coolant Valve Short to Battery is the main cause of P20B4 error.To solve P20B4 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 S770 Model
Before beginning operation, inspect the work area for
unsafe conditions.
Look for sharp drop-offs or rough terrain. Have
underground utility lines (gas, water, sewer, irrigation,
etc.) located and marked. Work slowly in areas of
underground utilities.
Remove objects or other construction material that could
damage the excavator or cause personal injury.
Always check ground conditions before starting your
work:
- Inspect for signs of instability such as cracks or
settlement.
- Be aware of weather conditions that can affect ground
stability.
- Check for adequate traction if working on a slope.