About Wi-Fi Configuration
Q: Why cannot see Solar-WiFi* signal on mobile devices
A: Normally Solar-WiFi* signal could be searched right after inverter powered up. But Solar-WiFi
signal will disappear when BT connected to internet. If need to change settings, can connect to the
router to change. If cannot see Wi-Fi signal even not connect to router, then please try to reload
Wi-Fi (please refer to BT user manual page 17).
Q: Why cannot connect Solar-WiFi* signal on my phone?
A: It is the character of the Wi-Fi module that it can connect to only one device at a time. If the signal
is connected to another device at the time for some reason, then you cannot connect to the signal.
About Battery Operation
Q: Why battery does not discharge when grid is not available, while it discharges normally when
grid is available?
A: On APP, Off-Grid output and Back-Up function should be turned on to make battery discharge
under Off-Grid mode.
Q: Why there is no output on Back-Up side?
A: For Back-Up supply, the “Back-Up Supply” on PV Master App must be turned on. Under Off-Grid
mode or grid power is disconnected, “Off-Grid Output Switch” function must be turned on as well.
Note: As turn “Off-Grid Output Switch” on, don’t restart inverter or battery, otherwise the function will
switch off automatically.
Q: On Portal, why battery SOC has a sudden jump up to 95%?
A: This normally happens on when BMS communication fail on lithium. If battery enter float charge,
SOC will be reset to 95% compulsively.
Q: Why battery cannot be fully charged to 100%?
A: Battery will stop charge when battery voltage reaches charge voltage set on PV Master APP.
Q: Why battery switch always trip when starts it up (Lithium battery)?
A: The switch of lithium battery normally trips for following reasons:
1. BMS communication fails.
2. Battery SOC is too low, battery trips to protect itself.
3. An electrical short-cut happened on battery connection side. Or other reasons please contact
GoodWe for details.
Q: Which battery should I use for BT?
A: For BT series inverter, it could connect lithium batteries which have compatibility with BT series
inverter with nominal voltage from 180V to 600V. Compatible lithium batteries can see on battery
list in PV Master APP .
About PV Master Operation and Monitoring
Q: Why Cannot save settings on PV Master App
A: This could be caused by losing connection to Solar-WiFi *.
1. Make sure you connected Solar-WiFi* (make sure no other devices connected) or router (if
connected Solar-WiFi* to router) and on APP home page shows connection well.
2. Make sure restart inverter 10mins later after you do some settings because inverter will save
settings every 10 mins under normal mode. We recommend you change setting parameters
when inverter under waiting mode.
Q: On the App, why the data on the homepage and Param page is different, like charge/dis-
charge, PV value, load value or grid value?
A: As the data on APP is from inverter and on home page and Param page, the data refresh frequency
is different, so there will be a data inconformity between different pages on APP as well as between
that on portal and APP .
Q: On App, some columns show NA, like battery SOH, etc. why is that?
A: NA means App does not receive data from inverter or server, normally it is because communica-
tion problem, such as battery communication, and communication between inverter and the APP.
About Smart Meter and Power Limit Function
Q: How to Act Output Power Limit function?
A: For BT system, the function could be realized by:
1. Make sure Smart Meter connection and communication well.
2. Turn on Export Power Limit function and set the max output power to grid on APP.
Note: If out-put power limit set as 0W,then there might still have deviation max 100W exporting to grid.
Q: Why there is still power exporting to grid after I set power limit as 0W?
A: Export limit could theoretically to minimum 0W, but there will have a deviation of around 50-100W
for BT system.
Q: Can I use other brand Meter to take over Smart Meter in BT system or change some settings
on Smart Meter?
A: No, because the communication protocol is inset between inverter and Smart Meter, other brand
Meter cannot communicate. Also any manual setting change could cause Meter communication
failure.
Q: What is the max current allowed going through CT on Smart Meter?
A: The max current for CT is 120A.
Other Questions
Q: Is there a quick way to make the system work?
A: The shortest way, please refer to BT QUICK INSTALLATION INSTRUCTIONS and PV MASTER
APP INSTRUCTION.
Q: What kind of load can I connect on Back-Up side?
A: Please refer to user manual on page 12.
Q: Whether the warranty of the inverter still valid if the installation or operation does not follow
the user manual instructions, for some special conditions when we cannot 100% follow them?
A: Normally if any problem caused by disobeys the instructions on user manual, we can provide
technical support to help to solve the problem, but cannot guarantee a replacement or returns. So
if there is any special conditions when you cannot 100% follow the instructions, please contact
GoodWe for suggestions.
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