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10 - Troubleshooting
and Maintenance
This chapter describes troubleshooting and maintenance procedures for the SolarCity H6
inverter and also discusses the intended uses and recommended/non-recommended home
loads.
10.1 - Intended Uses
The SolarCity H6 inverter operates as a typical PV inverter and is also used to operate
(charge/discharge) a battery pack. It can serve many common applications such as back-up,
peak shaving, load sharing, demand response, and economic energy dispatch. It can also
operate in off-grid mode for longer times as needed.
Each SolarCity H6 inverter is rated for up to 6kW@240V or 3kW@120V. Extreme care must
therefore be taken to select protected home loads that will not overload the inverter. See
“General Troubleshooting” on page 103
and
“General Troubleshooting” on page 103
.
Properly balancing the protected home loads between the BL1-N and BL2-N split phases is
essential for ensuring maximum power availability. When off-grid, the homeowner needs to
be aware of how many breakers can be ON in the backup panel at any one time, as well as the
mix of options by phase to help ensure balance.
10.2 - General Troubleshooting
A fault or warning message on the H6 inverter LCD display can be acknowledged by selecting
CURRENT STATUS on the menu. This may not clear the condition, and you must still perform
the troubleshooting described in this chapter starting with the following general procedure:
1. Immediately check for any issues, such as (but not necessarily limited to):
- Excessive heat at the inverter or battery pack causing power de-rating.
- Too many protected home loads ON at the same time causing an overload situation.
2. Make a note of the specific fault, warning, or alarm message that is appearing on the LCD
display of the SolarCity H6 inverter.
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