APsystems YC1000-3 Installation/User Manual
13
Troubleshooting
Qualified personnel can use the following troubleshooting steps if the
PV system does not operate correctly:
Status Indications and Error Reporting
Start up LED
Three (3) short green blinks, when DC power is first applied to the
microinverter, indicates a successful microinverter start up. It is
important to understand that this “start up” sequence occurs once
the first module is connected to the microinvert and is successfully
generating DC power. The“start up” sequence does NOT reoccur as
additional modules are connected to the same microinverter.
Operation LED
Flashing Slow Green (10 sec. gap)
- Producing power and communicating
with ECU
Flashing Fast Green (2 sec. gap) -
Producing power and not
communicating with ECU over 60mins
Flashing Red
- Not producing power
Other Faults
All other faults are reported to the ECU. Refer to the ECU
Installation and Operation Manual for a list of additional faults
and troubleshooting procedures.
WARNING:
Only qualified personnel should directly handle the
APsystems microinverter.
WARNING:
Never disconnect the DC wire connectors under
load. Ensure that no current is flowing in the DC wires prior to
disconnecting. An opaque covering may be used to cover the module
prior to disconnecting the module.
WARNING:
Always disconnect AC power before disconnecting
the PV module wires from the APsystems microinverter. The AC
connector of the first microinverter in a branch circuit is suitable as a
disconnecting means once the AC branch circuit breaker in the load
center has been opened.
WARNING:
The APsystems microinverter is powered by PV module
DC power. Make sure you disconnect and reconnect the DC connections
to watch for the three short LED flashes indicating start up.
