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Troubleshooting
3–6
975-0288-01-01
Display is ON, AC is not
available on both
hardwired and unit
AC socket.
Low input voltage
(error code E01)
High input voltage
(error code E02)
Unit is overload protected
(error code E03)
Unit is thermal protected
(error code E04)
Unit is ground fault protected
(error code E09)
Recharge the battery; check the
connections and cable.
Make sure the unit is connected to a 12 V
battery. Check battery is not overcharged.
Reduce the amount of loads connected to
the unit or the start up surge on the load
exceed surge limit of the unit.
Allow the unit to cool off. Reduce the
load if continuous operation is required.
Improve ventilation. Make sure the
inverter's ventilation openings are not
obstructed.
Reduce the ambient temperature.
Turn the unit off. Check all DC Input
connections (PV, wind etc.) and repair
any faults or damage. Replace the ground
fault fuse (see page 3–10) and restart the
unit
Digital display or LED is
flickering especially in a
dark environment.
Display is normal
N/A
Inadequate run time.
Internal battery is not fully
charged.
Internal battery has aged past its
warranted shelf life, the available
run time decreases.
Charge the internal battery by leaving the
charger backup power system plugged
into a wall outlet at least 20 hours.
Replace the internal battery. The internal
battery also ages prematurely if the
system is installed in a hot environment.
Products connected to unit
malfunction or overheat.
Products connected to backup
power system do not accept
modified sine wave form.
Your application is not compatible with
backup power system modified sine wave
output.
See “Rechargeable Devices” on page 3–9.
Table 3-2
Possible Problems if Utility Power is Not Available
Problem
Probable Cause
Solution
Summary of Contents for PowerHub PH1800
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