Bobcat 553 H1221 Error Code
H1221 Error Code
Right Primary Out of Range High is the main cause of H1221 error.A significant number of consequences can be suffered due to an overheating engine with code H1221. The problem might be a blown gasket or something related to the fuel tank.
Tip For 553 Model
When the temperature is below -30 C (-20 F), hydrostatic oil must be warmed before starting. The hydrostatic system will not get enough oil at low temperatures and will be damaged. Park the machine in an area where the temperature will be above -18 C (0 F) if possible.