Installation Guide

Troubleshooting the Conext SW via the SCP
975-0638-01-01 Rev A 5–7
Table 5-3 provides a detailed description of the fault detection messages and
solutions. If you are unable to resolve the problem after referring to this table,
contact customer service.
Table 5-3 Fault Detection Messages
Code Message Type Cause Solution
F1
AC Output under
voltage
Escalating Auto
fault detection.
Must occur 3 times
in 30 seconds
before becoming a
manual fault
detection.
Inverter voltage is
under 210 volts.
Remove excessive load.
F2
AC Output over
voltage
Escalating Auto
fault detection.
Must occur 3 times
in 30 seconds
before becoming a
manual fault
detection.
Inverter voltage is
over 255 volts.
Check if there is an external
power source that is running
parallel to the inverter’s
output.
F17
AC Backfeed (L1) Manual AC backfeed from
welded relay on
Line 1.
Service required.
F18
AC Backfeed (L2) Manual AC backfeed from
welded relay on
Line 2.
Service required.
F44
Battery Over
Temperature
Automatic Battery
temperature is
over 140 °F
(60 °C).
Poor battery
compartment
ventilation.
Stop charging if necessary.
Check cable connections.
Check battery voltage/current
and temperature. If battery is
not accepting charge, it may
need to be replaced.
Check for excessive ambient
temperature and adequate
ventilation in the battery
compartment.
Automatic BTS may be
damaged.
If the unit displays a
temperature of over 212 °F
(100 °C), the BTS will need to
be replaced.
ConextSW-NA-OwnersGuide.book Page 7 Thursday, December 20, 2012 2:00 PM