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KP100G
Fault Message
Fault definition
Insulation resistance
has dropped in the solar
module equipment.
E2-4 : Isolation fault
KP100G internal
temperature is high.
E3-4:Over
Temperature
The fan rpm has
dropped.
A2-5: Fan Lock
The KP100G detects an
abnormality.
Other Error messages
Ground faults are being
caused by electrical
appliances, the
KP100G, or the solar
modules.
The main ground-fault
breaker trips frequently.
Proposed Actions for
Possible Causes
End-user
1. The PV array installation
1. Make sure the breaker and switch
or the array themselves
might be faulty.
2. Check the AC wiring
3. If the problem persists, contact the
1. Ambient temperature is
1. Make sure the ambient temperature
too high.
2. Heat dissipation problem
3. Inverter is abnormal.
2. Check the space near the heat sink.
3. Remove any obstacle that block.
4. If the problem persists, contact the
1. Something is blocking the
1. If something is blocking the
ventilation holes.
2. The end of life time of the
fan.
2. If nothing is blocking the
3. The fan is abnormal.
1. Contact the store from which you
1. Check to make sure that the ground
2. If no abnormalities are found,
47
on AC side are close. Operation
will restart automatically when the
voltage from the utility returns to
normal.
store from which you purchased
the product or your installer.
of installation is less than 55°C.
Operation will restart
automatically when the
temperature returns to normal.
the heat dissipation near heat sink
store from which you purchased
the product or your installer.
ventilation holes in the side panel,
remove it.
ventilation holes, the fan may have
reached the end of its service life.
Contact the store from which you
purchased the product or your
installer.
purchased the product.
faults are not being caused by
electrical appliances.
contact the store from which you
purchased the product to measure
the insulation resistance of the
KP100G and the solar modules.
Also describe the circumstances
under which the problem happens
(for example, the problem occurs
on the morning after a rainy day,
etc.).
Proposed Actions for Professionals
1. Make sure the breaker and switch
on AC side are close.
2. Check the AC wiring
3. If the problem persists, please
replace the inverter.
1. Make sure the ambient temperature
of installation is less than 55°C.
2. Check the space near the heat sink.
3. Remove any obstacle that block
the heat dissipation near heat sink.
4. If the problem persists, please
replace the inverter.
1. If something is blocking the
ventilation holes in the side panel,
remove it.
2. If nothing is blocking the
ventilation holes, the fan may have
reached the end of its service life.
Call your local dealer.
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