Category Archives: Trouble Codes

This error code is designed to alert a user to if the battery pack has degraded and is weak, this error is triggered based only when pre-programmed conditions are met and does not necessarily indicate a weak is actually weak … Continue reading →

This fault is triggered when the BMS requests the external fan and the voltage measured at the fan monitor pin on the BMS is below (or above if inverted) the error threshold programmed into the profile. This is used strictly … Continue reading →

This fault means the BMS did not receive a CANBUS message it was expecting. The fault is only enabled under 2 conditions: Condition 1) If the BMS is specifically configured to monitor for the presence of external CAN message (heartbeat … Continue reading →

This error message is triggered when the always on power to the BMS is off while the READY or CHARGE power is on. This error is not triggered on revision D & newer units if “Disable Always On Power Supply” … Continue reading →

This fault is triggered when the voltage measured by the BMS drops below approximately 9v for 5 to 8 seconds. This code remains set even after the voltage has returned to normal.   Resolving the issue: Step 1. Ensure that … Continue reading →

(Also P0A07 – Discharge Limit Enforcement Fault and P0A08 – Charger Safety Relay Fault) These 3 fault codes are caused when charge or discharge current (respectively) either exceeds the limit set by the BMS or continues after the digital on/off … Continue reading →

(Also P0A06 – Charge Limit Enforcement Fault and P0A08 – Charger Safety Relay Fault) These 3 fault codes are caused when charge or discharge current (respectively) either exceeds the limit set by the BMS or continues after the digital on/off … Continue reading →

(Also P0A06 – Charge Limit Enforcement Fault and P0A07 – Discharge Limit Enforcement Fault) These 3 fault codes are caused when charge or discharge current (respectively) either exceeds the limit set by the BMS or continues after the digital on/off … Continue reading →

A thermistor fault is triggered detected if the analog voltage measured from the thermistor is outside of the normal thermal operating range. This error can be triggered if the temperature of the thermistor rises above 81C or drops lower than … Continue reading →