Hitachi error codes & fixes
Browse Hitachi error codes by device type, search your model, or jump straight to the latest fixes.
Try XC7057/01 or E2.
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Hitachi RV-EX20 Error Code C28
Hitachi RV-EX20 error code C28 means battery is too cold. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C27
Hitachi RV-EX20 error code C27 means battery is too hot. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C23
Hitachi RV-EX20 error code C23 means unit has climbed onto a step. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C22
Hitachi RV-EX20 error code C22 means unit is stuck. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C21
Hitachi RV-EX20 error code C21 means wheels are lifted off the floor. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C20
Hitachi RV-EX20 error code C20 means sensors cannot operate on reflective/dark floors or in direct sunlight, the unit cannot move in tight spaces, or sensors are dirty. This guide explains…
Hitachi RV-EX20 Error Code C12
Hitachi RV-EX20 error code C12 means main power switch is OFF and charging cannot start. This guide explains the likely causes, the safest first checks, and when support or service is the b…
Hitachi RV-EX20 Error Code C10
Hitachi RV-EX20 error code C10 means main unit interior is too hot. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C07
Hitachi RV-EX20 error code C07 means front sensor is malfunctioning. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Hitachi RV-EX20 Error Code C06
Hitachi RV-EX20 error code C06 means bumper is malfunctioning. This guide explains the likely causes, the safest first checks, and when support or service is the better next step.
Models
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About Hitachi error codes
Error codes are designed to point to the most likely issue fast (temperature, power, sensors, locks, etc.). Start with the quick fix, then continue with deeper checks if the code returns.
Always follow basic safety: unplug before opening anything, and stop if you smell burning or see damage.