SolarHope App - Alarm Code Guide
Audience: External (Public)
Purpose: To provide a clear, easy-to-understand guide for homeowners on what the different alarm codes in the 'SolarHope' app mean and what actions, if any, they should take.
Understanding Alarms in Your 'SolarHope' App
Your MeterHome™ system is designed with numerous safety and operational monitors. When it detects an issue—from a normal operational notice to a critical fault—it will display an alarm in your 'SolarHope' app. This guide will help you understand what these alarms mean.
Always remember: Your safety is the top priority. If you see a critical alarm, do not attempt to touch or repair the system. Follow the instructions provided and contact support.
Normal Operational Alarms
These alarms are part of the system's normal operation. No action is typically needed.
Alarm Code | Alarm Name | What it Means & What to Do |
|---|---|---|
62 | Battery Low | Your battery's stored energy is running low. This is a normal "low fuel" warning. What to do: Conserve energy if you are in an outage. The battery will recharge automatically from the sun or grid. |
63 | Battery Over Charge | Your battery is 100% full and has stopped charging to protect itself. This is normal on sunny days. What to do: Nothing. The alarm will clear when your home starts using battery power. |
45 | Grid Absent | The system has detected a utility power outage and has switched to backup power. What to do: This is normal. Conserve energy to extend your backup time. The system will reconnect automatically when grid power returns. |
C6, C7 | PV Under Voltage / PV Irradiation Weak | There is not enough sunlight for the solar panels to produce power (e.g., at night, during heavy storms, or if panels are covered in snow). What to do: Nothing. This is normal and will clear when the sun comes out. |
Alarms That May Require Your Attention
These alarms can sometimes be resolved with simple actions.
Alarm Code | Alarm Name | What it Means & What to Do |
|---|---|---|
DC | BACKUP Over Load | You are running too many high-power appliances on your backup circuits at once. What to do: Turn off a large appliance (like a microwave or space heater), then restart your system using the shutdown/startup procedure. |
DB | BACKUP Short Circuit | A faulty appliance or wire on your backup circuit has caused a short. What to do: Unplug all devices from your backup outlets, then restart the system. Plug devices back in one by one to find the faulty one. |
C1, D5 | Inverter / Battery Over Temperature | The system is overheating due to a hot environment or high load. What to do: Turn off large appliances and ensure the vents on the units are not blocked. Improve airflow in the room if possible. The system will recover automatically when it cools down. |
D6 | Battery Under Temperature | The battery is too cold to operate safely (typically below freezing). What to do: This is a normal safety feature in cold weather. The system will recover automatically when the ambient temperature rises. Do not use portable heaters near the unit. |
46, 47, 48 | Grid Voltage / Frequency Abnormal | The power from the utility company is unstable. The system has disconnected to protect itself. What to do: This is usually a temporary grid issue. Wait for the system to reconnect automatically. If it persists for over an hour, you can try restarting the system. |
Critical Alarms: Contact Support Immediately
If you see any of the following alarms, please perform a Safe System Shutdown as instructed by our support agent and do not attempt to restart the system. These alarms require professional service.
Alarm Code | Alarm Name | What it Means |
|---|---|---|
28, 35-44, B2, B6-B9, BA-BC, C4, C8-C9, DF, E0-E2 | Internal Faults | These codes indicate an internal hardware failure within the inverter (e.g., System type error, Internal communication error, Fan abnormal, etc.). |
61 | Battery Fault | A general code indicating the Battery Management System has detected an internal issue. |
D7 | BMS Hardware Fault | A critical hardware failure within the battery's safety and monitoring systems. |
D8, 112 | Inverter and BMS Communication Lost | The data link between the inverter and the battery has been lost. |
D9, 104 | Battery Absent | The inverter can no longer detect the battery. |
DA, 110 | Neutral and Live Wire Reversed | A critical wiring error from the initial installation has been detected. |
B1, 82 | PV Insulation Abnormal | A serious safety issue with the solar panel wiring has been detected. High risk of shock. |
B5, 90 | Arc Fault | A dangerous electrical arc (spark) has been detected in the solar panel wiring. High risk of fire. |
C0, 65 | PV String Reverse | The solar panels were wired backwards during installation. |
C2, 83 | Leakage Current Abnormal | A potential shock hazard has been detected. |
C3, 64 | GFCI Abnormal | A potential shock hazard has been detected on the backup power circuit. |