EN
7. Troubleshooting
Problems and Symptoms
A. Power status red light is
blinking fast.
B. Power status red light is
Blinking slowly.
C. Power status red light is
blinking Intermittently.
D. Power status is solid red
8. Warranty
We guarantee this product against defects in materials and workmanship for a period of
24 months from the date of purchase. Please contact with your local COTEK authorized
distributor for RMA (Return material Authorization) service. Please note that COTEK will
ensure our products are operational before delivery and the warranty service is offered
to the unit which has defect caused under normal use, in the judgment of COTEK's
technician. The warranty is null and void under the following circumstances:
(a) If the unit has been damaged through abuse, misuse, negligence (such as bumping,
wetting), fault voltage supply, air/water pollution accidents and natural calamities.
(b) If the serial number has been altered, effaced or removed.
46
Possible Cause
Over input voltage. (OVP)
Low input voltage. (UVP)
Thermal shut-down. (OTP)
Short circuit.
Wiring error.
Over Loading (OLP)
Table 47. SD series Troubleshooting
Solutions
Check input voltage.
Reduce input voltage.
Recharge battery. Check connections
and cables.
Improve ventilation. Make sure
ventilation, shafts of the inverter are
not obstructed. Lower ambient
temperature.
Check AC wiring for short circuit.
Reduce load.