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7
MAINTENANCE & SERVICE
6
TROUBLESHOOTING GUIDE
7
Maintaining Your
Inverter
Your CPI 150 requires very
little maintenance to keep it
operating properly. The
exterior of the unit should be
cleaned periodically with a
damp cloth to prevent
accumulation of dust and dirt.
At the same time, tighten the
screws on the DC input
terminals. Keep vents and fans
free from dust or debris.
Service
You can receive technical
assistance with your unit
through one of our customer
support services:
• Automated Help Desk
is available 24 hours a day,
7 days a week at
773-889-3087.
• Customer Service Operators
are available at
773-889-3087
Monday throughFriday,
8:00 a.m. to 6:00 p.m. CST.
• Questions can be faxed to
773-622-2269.
• Automated Technical
Assistance is available
24 hours, 7 days a week
via e-mail at:
productinfo@cobra.com.
• On-line answers to
frequently asked questions
can be found at:
www.cobra.com
8
Problem/ Possible Solution
Symptom Causes
Low output voltage Overload Reduce the load.
No output voltage Low input Recharge battery.
voltage Check connections
and cable.
Short circuit or Check AC wiring for short
wiring error circuit or improper polarity.
No output voltage High input Make sure the inverter
and "fault" voltage is connected to a
indicator is lit 12 volt battery.
Check regulation of
charging system.
No output voltage Thermal Allow inverter to cool down
when load is in shutdown Improve ventilation—
excess of 150 watts make sure ventilation
or 1.3 amperes openings in the inverter
are not obstructed. Lower
ambient temperature.
Low battery Poor DC wiring, Use proper cable.
alarm sounds poor battery Ensure good connections.
continuously connection Use new battery.