TECHNICAL INFORMATION
Copyright Trace Engineering Company, Inc.
5916 - 195th Street N.E.
Arlington, WA 98223
Telephone: 360/435-8826
Fax: 360/435-2229
www.traceengineering.com
PS Series Inverter/Charger
Part No. 3597
Rev. D: November 23, 1999
Page
109
TROUBLESHOOTING GUIDE
PS Series Troubleshooting using the LED Indicators Page 1 of 2
ERROR CAUSES
ERROR LED is ON and
no other LED’s are on
DC voltage on the inverter’s DC terminals has been connected and is ready to turn
on. The ERROR (red) LED is only indicating that the AC output is not available until
you turn the unit on
ERROR LED is ON and
INVERT LED is flashing rapidly.
Determine your particular error from the causes below.
OVERCURRENT
Excessive load on the AC output
Disconnect all wires on the AC input and output.
Reset the inverter by pressing the On/Off switch to OFF, then to SRCH or ON. If unit
comes on, then check AC wire system (shorts or miswired)
TRANSFORMER OVERTEMP or
HEATSINK OVERTEMP
Unit is warm/hot to the touch.
Let inverter cool down and try restarting.
Charging: AC input voltage may be too high, check for high input ac voltage.
Inverting: operating too large of a load for too long, remove excessive loads
(a) Ambient temperature may be high
(b) Inverter cooling fan may have failed – hold a piece of paper to inverter vents to
check fan, (fan is hard to hear).
(c) Inverter airflow intake may be blocked (small clearance or clogged).
HIGH BATTERY VOLTAGE or LOW
BATTERY VOLTAGE
Battery voltage is not within the High or
Low battery cut-out settings.
Check for the correct battery voltage at the inverter’s DC input terminal.
High battery: Ensure your DC source is regulated below your High battery cut-out.
(default = 16.0 vdc)
Low battery: Check for an external DC load on the batteries. Check the condition of
your batteries and recharge if possible. (Low Battery Cut Out default = 11.0 vdc)
LOW AC INVERTER VOLTAGE
The AC output voltage has fallen below
SET INPUT LOWER LIMIT VAC setting.
The cause for this error could be high battery voltage or an excessively large load
for more than 20 seconds.
HIGH AC INPUT or LOW AC INPUT
VOLTAGE
Detects single cycle voltage problems
from the ACV input that are outside the
Upper or Lower limit VAC settings.
Check for the AC voltage at the AC input terminals. Ensure the voltage is within the
‘Set input Upper VAC’ setting and the ‘Set input Lower VAC’ setting. These advisory
errors last for 3 minutes only and will not disconnect the AC input.
Set Upper limit VAC setting: Default = 132 VAC;
Set Lower limit VAC setting: Default = 108 VAC
INVERTER MODE- If ERROR LED comes on, see ERROR CAUSES section
Unit will not come on
(no LED’s are on)
DC voltage on the inverter’s DC
terminals is incorrect.
Check the battery voltage, fuses or
breakers and DC cable connections to
the inverter
DC voltage on the inverter’s DC
terminals is correct
Have unit serviced
Unit comes on, but goes off quickly
(several attempts made)
Excessive load on output, unit is in over-temperature protection (needs to cool
down), incorrect battery voltage.
Is ERROR (red) LED on and INVERT (yellow) led flashing rapidly? See ERROR
CAUSES section.
No AC power output
INVERT LED (yellow) is blinking twice
with a one second pause and the
ERROR LED is on.
Inverter is in the CHG (charge) only mode, apply AC power to begin charging and to
provide AC pass-thru voltage to the output.
No AC power output
INVERT LED is flashing.
AC load too small for Search mode
circuit to detect
Increase load above 16 watts (default
setting) or defeat search mode by
pressing On/Off button until INVERT
LED is ON.
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