Troubleshooting & Opening The Main Enclosure - Solectria Renewables PVI 10kW Installation And Operation Manual

PVI 10kW / PVI 13kW / PVI 15kW
5 – Trouble Shooting
The PVI 10kW / PVI 13kW / PVI 15kW is designed, produced and rigorously tested for long life and
reliability in a wide range of climate conditions, voltage and power levels.
With a properly shipped, sited, mounted, wired and tested installation, the integrated PVI 10kW / PVI
13kW / PVI 15kW inverter unit should give many years of trouble-free and maintenance-free service.
The following trouble shooting information will help in the event that the inverter does not function,
stops functioning or does not provide full performance.
WARNING: Before attempting to open disconnects or the main enclosure, read the entire
manual, especially warning messages and "Opening The Main Enclosure" later in this
section. Only qualified personnel should attempt to open any of these enclosure doors or
do any service or troubleshooting.
PV system not functioning
 Check LED indicator status
 Check connection to grid, 3-phase AC voltage & CLOCKWISE phase rotation (with meter)
 Check DC (PV) string connections or main PV feed conductor connections
 Verify PV voltage range including hot module temperature MPP voltage and cold module
temperature, open circuit voltage (OCV)
 Contact installer or Solectria Renewables if malfunction persists
 If contacting Solectria Renewables for assistance, please provide part number, serial number,
short description of problem (LED indicator status, when problem started, how often problem
occurs, under what conditions the problem occurs) and information on PV modules (string
layout, number of modules per string, number of strings, module model and part number, output
power, short-circuit current and open circuit voltage)
Some specific problems that can be identified quickly:
 GFDI Problem: If the LED indicators show a ground fault problem but the GFDI fuse is not
blown then a ground fault in PV array or wiring must be found. If the LED indicators show that
the GFDI fuse is blown, the fault in PV array or wiring must be found and GFDI fuse replaced.
For fuse replacement, see section 4 "Power, GFDI and Error LED Indicators".
 Inverter over heating and power de-rating. If the power output is lower than normal and there is
an LED indication of power de-rating due to high temperature, check the following
 Is the ambient air temp above 45-50
 Is the intake (front) louver grill or output (bottom) visibly blocked?
 Is the unit in direct sunlight which is adding extra heat to the inverter?
Unit over heating, power de-rating, or unit not putting out power
 Check insect screens in front louver grill on main enclosure door for clogging from dust, pollen
and debris. The louver/grill can be removed with 8 Philips screws holding it on and insect screen
can be cleaned or replaced (Solectria Renewables P/N HDW-150005-001)
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Installation and Operation Manual
July 7, 2010