Bobcat E20 P21C4 Error Code
P21C4 Error Code
DEF Main Heater Relay Short to Battery is the main cause of P21C4 error.After seeing this code please, record of service logs, giving you a visualization of completed service and helping you avoid overlooked or repeated repairs. This is especially important for cost savings on repairs for vehicles like dump trucks, where repeated issues with certain components might be covered by the manufacturer warranty.
Tip For E20 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.