8.0
GenStar MPPT
71
Troubleshooting
70
7.2 Battery Charging and Performance Issues
Problem:
No LED indications, controller does not appear to be powered
Solution:
With a multi-meter, check the voltage at the battery terminals on the GenStar MPPT. Battery voltage
must be 10 vdc or greater. If the voltage on the battery terminals of the controller is between 10 and
35 Vdc, and no LEDs are lit, contact your authorized Morningstar dealer for service.
If no voltage is measured, check wiring connections, fuses, and breakers.
Problem:
The GenStar MPPT is not charging the battery.
Solution:
Check the three (3) battery SOC LEDs. If they are flashing in a sequence, to determine the cause,
see Sections 5.7 and 6.1 of this manual. Meter and LiveView will display active faults and alarms.
If the LED indications are normal, check the fuses, breakers, and wiring connections in the power
source wiring. With a multi-meter, check the array voltage directly at the GenStar MPPT solar input
terminals. Input voltage must be greater than battery voltage before charging will begin.
Problem:
Controller makes buzzing and humming noises.
Solution:
No action is required. This is expected due to magnetic resonance and circuit switching.
If troubleshooting does not correct the problem, please refer to Morningstar's Warranty Claim
Procedure in Section 8.
WARRANTY
LIMITED WARRANTY - Morningstar Solar Charge Controllers and Inverters
All Morningstar
Professional Series
TM
and
Integrated Series
TM
products, except the SureSine
TM
inverter, are warrantied to be free from defects in materials and workmanship for a period of FIVE
(5) years from the date of shipment to the original end user. Warranty on replaced units, or field-
replaced components, will be limited only to the duration of the original product coverage.
Morningstar
Essentials Series
TM
,
and
SureSine
TM
inverter, products are warrantied to be free from
defects in materials and workmanship for a period of TWO (2) years from the date of shipment to the
original end user. Warranty on replaced units, or field-replaced components, will be limited only to
the duration of the original product coverage.
Morningstar will, at its option, repair or replace any such defective units.
CLAIM PROCEDURE:
Before requesting warranty service, check the operator’s manual, including any troubleshooting
section, to verify product failure. To begin the warranty replacement process, contact your authorized
Morningstar distributor or dealer for assistance with troubleshooting and, if necessary, obtaining an
RMA number.
An RMA number must be issued by Morningstar prior to return of any unit(s) under this
warranty. Required RMA information:
(A) purchase location - business or company name - and date
(B) full model and serial numbers (SN is 8-digits on unit bar label)
(C) failure behavior, including LED indications
(D) array configuration, panel Pmax, Voc, Vmp, Isc, and nominal battery voltage; these
specifications are needed to receive assistance.
(E) multi-meter available (for field troubleshooting)
If the dealer is contacted, and is not able to assist with warranty claim, contact Morningstar Tech
support at [email protected]. Provide proof of date and place of purchase, and all
details listed in preceding paragraph.
WARRANTY EXCLUSIONS AND LIMITATIONS
:
This warranty does not apply under the following conditions:
• Damage by accident, negligence, abuse or improper use
• PV or load currents exceeding the ratings of the product
• Unauthorized product modification or attempted repair
• Damage occurring during shipment
• Damage resulting from acts of nature such as lightning, weather extremes, or infestation
(Cont.)
8.0 WARRANTY & POLICIES
