Hello!The codes you see on your MK10 meter (03, 13, 04, 14) generally indicate specific statuses or alarms related to the meter's operation. Code 03 usually signals a power failure alarm, while code 13 indicates a voltage tolerance error. Code 04 represents a clock failure, and code 14 denotes clubpilates reverse power flow. It's important to refer to the user manual for your MK10 meter or contact the manufacturer or your utility provider for precise information and guidance on troubleshooting a ...