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03 OTHERS User Manual V1.6-2022-01-05
A-ES Hybrid inverter doesn't discharge or output without PV or when PV is lower than load
power
Solution:
1. To check whether the CT is installed correctly, Meter test can be performed in PV Master
2. Make sure load power is higher than 100W.
a. Battery will not discharge continuously unless load power is higher than 100W;
b. If battery does not discharge when Meter power is higher than 100W, please check CT
connection dand direction;
3. Make sure SOC (State of charge) is higher than 1-DOD (Depth of discharge). Or if battery
ddischarges to below 1-DOD, battery will only discharge again when SOC charged to (20%+1-
DOD)/ d2 (if the battery discharge is needed immediately, the user should restart battery).
4. Check on App whether the charge time has already been set, as during charge time, battery
will not ddischarge (battery will charge in priority during coincident time of charge/discharge).
Battery does not charge when PV power higher than load power
Solution:
1. Check the discharge time setting on App.
2. Check if battery is fully charged or not, or if battery voltage reaches "charge voltage" or not.
High power uctuation on battery charge or discharge
Solution:
1.Check if there is a uctuation on load power.
2.Check if there is a uctuation on PV power.
Battery does not charge
Solution:
1. Make sure BMS communication is OK on PV Master App.
2. Check if CT is connected in the right position and connected to right direction and right phase.
3. Check if the total load power is much higher than PV power.
Questions & Answers (Q & A)
About Wi-Fi Conguration
Q: Why can't I connect Solar-WiFi* signal on my phone?
A: The Wi module can only connect to one device at a time. If the signal is already connected to
another device at the time for some reason, you cannot connect to the signal.
About Battery Operation
Q: Why does the battery not discharge when grid is not available, while it discharges
normally when grid is available?
A: On the App, o-grid output and back-up function should be turned on to make battery
discharge under o-grid mode.
Q: Why is there no output on back-up side?
A: For back-up supply, the "Back-Up Supply" on PV Master App must be turned on. Under
o-grid mode or when grid power is disconnected, "O-Grid Output Switch" function must be
turned on as well.
Note: When turning "O-Grid Output Switch" on, don't restart inverter or battery,
otherwise the function will be switched o automatically.
Q: The battery cannot be fully charged to 100%?
A: Battery will stop charging when battery BMS send charge current to zero.
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