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INV 2500 SERIES MANUAL REV 1 1/13
SECTION 4
TROUBLE SHOOTING
4.2
TROUBLESHOOTING
In the event problems are encountered during the installation and operation of the inverter refer to the
chart below before assuming the inverter is at fault. If It is determined the fault is with the inverter,
contact Behlman Electronics for service information.
SYMPTOM
POSSIBLE CAUSE
ACTION
Low or no output
Output overloaded
Check load current . Disconnect
load and recheck
output voltage using TRMS
meter. Recycle power.
Erratic operation
Input voltage fluctuating
Monitor voltage at DC input
terminals of inverter. Make
sure it is with in specifications
No AC input alarm
( optional)
AC - Bypass fuse blown
Check fuse. Measure AC input
at rear panel.
Output distorted
High peak load current
Reduce loading if distortion
is objectionable.
DC breaker repeatedly trips
DC polarity reversed or internal
fault in inverter.
Check polarity, if ok, the unit
may have an internal fault.
Return for service
!
WARNING
Service of this device requires specialized equipment and trained personnel. There are no internal
user serviceable parts. Removing the cover will expose individuals to hazardous voltages.
Refer
service to qualified persons only !
4.3
MAINTENANCE
The INV 2500 series requires very little in the way of routine maintenance. If the unit is operated in a
dirty or dusty environment it should be removed from service periodically and cleaned. The use of
forced air is perfect for cleaning dust and debris from fan intakes and heat sink assemblies. Light
brushing and vacuuming is also effective.
If the unit is to be supplied from batteries, the condition of the batteries will have a significant affect on
the operation of the unit. Poorly maintained batteries can cause the unit malfunction when heavily
loaded. If this device is to be used as part of a back-up power system a battery maintenance schedule
should be discussed with the battery manufacturer. Behlman does not provide batteries for these units.
