Product Manual

900-0161-01-01 Rev B 45
Troubleshooting
Basic Troubleshooting
Table 5 is organized in order of common symptoms, with a series of possible causes. Each
shows possible troubleshooting remedies, including system display checks where appropriate.
Figure 10 AC Test Points
WARNING: Shock Hazard
During an error shutdown, the inverter’s output terminals are not live. However, if
the inverter recovers from a shutdown, the terminals will become live without notice.
Several error shutdowns can be recovered automatically, including
Low Battery V
,
High Battery V
, and
Over Temperature
. See page 51.
NOTE:
In Table 5, “System display only” usually indicates that a MATE3-class device is
required to perform the step. It cannot be performed without the system display.
Table 5 Troubleshooting
Symptom Possible Cause Possible Remedy
No AC output
(will not invert).
No DC voltage. Use a DC voltmeter to check the voltage directly on the DC
terminals. If not present, the problem is external. If present,
the inverter could be damaged.
Jumper J3 missing. See the
Installation Manual
for the location of J3. Confirm the
jumper is present. If missing, replace the jumper. Or follow
the manual instructions to install an external switch.
Unit defaulted off
(No system display; initial
install; J3 confirmed present).
The Radian inverter is given an initial
Off
command in the
factory. With DC present, use narrow pliers to remove jumper
J3 from its pins. Once removed, install it again. This is the
equivalent of “jiggling the switch.”
Inverter set to
Off
.
System display only:
Set to
On
with the
INVERTER
hot key.
NOTE
: The
O
N
/O
FF
jumper must be installed.
Inverter set to
Search
(Search mode).
System display only:
If constant power is required, set to
On
with the
INVERTER
hot key. (If this setting was intentional,
then no action is required.)
Metal pads are located at these
locations. In troubleshooting,
AC voltages can be measured
at this series of test
p
oints.