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TROUBLESHOOTING
Symptom Possible Cause Remedy
HTUPS 500 is not
receiving power.
HTUPS 500 is not
turned on.
• Make sure HTUPS 500’s AC power plug is plugged into
a properly grounded 120V wall outlet, and press the ON button
for three seconds to turn on the unit.
• In some households, a wall switch may need to be thrown
to make the wall outlet come alive. Try turning on the light
switches located near the wall outlet powering HTUPS 500.
Battery voltage less
than 10V (Contact your
Monster Power dealer)
• Recharge HTUPS 500’s battery for at least 6 hours.
(Contact your Monster Power dealer if battery does not charge.)
HTUPS 500
is defective.
• Please see warranty information.